diff --git a/includes/add_datastream.form.inc b/includes/add_datastream.form.inc
index 33decefc..dd5b0dbb 100644
--- a/includes/add_datastream.form.inc
+++ b/includes/add_datastream.form.inc
@@ -22,6 +22,10 @@ function islandora_add_datastream_form(array $form, array &$form_state, Abstract
   module_load_include('inc', 'islandora', 'includes/content_model');
   module_load_include('inc', 'islandora', 'includes/utilities');
   form_load_include($form_state, 'inc', 'islandora', 'includes/add_datastream.form');
+  $form_state['object_id'] = $object->id;
+
+  // @deprecated Storing objects in $form_state is asking for a bad time...
+  // Causes issues with derivative generation when we try to use it.
   $form_state['object'] = $object;
   $form_state['datastream_requirements'] = islandora_get_missing_datastreams_requirements($object);
   $unused_datastreams = array_keys($form_state['datastream_requirements']);
@@ -93,7 +97,8 @@ function islandora_add_datastream_form(array $form, array &$form_state, Abstract
  *   The Drupal form.
  */
 function islandora_add_datastream_form_field_is_not_an_existing_datastream_id(array $element, array &$form_state, array $form) {
-  if (isset($form_state['object'][$element['#value']])) {
+  $object = islandora_object_load($form_state['object_id']);
+  if (isset($object[$element['#value']])) {
     form_error($element, t("@title already exists in the object.", array('@title' => $element['#title'])));
   }
 }
@@ -183,7 +188,7 @@ function islandora_add_datastream_form_validate(array $form, array &$form_state)
  *   The Drupal form state.
  */
 function islandora_add_datastream_form_submit(array $form, array &$form_state) {
-  $object = $form_state['object'];
+  $object = islandora_object_load($form_state['object_id']);
   $form_state['redirect'] = "islandora/object/{$object->id}";
   $file = file_load($form_state['values']['file']);
   try {
diff --git a/includes/datastream.inc b/includes/datastream.inc
index 26a7a8d5..ba2872c2 100644
--- a/includes/datastream.inc
+++ b/includes/datastream.inc
@@ -56,9 +56,12 @@ function islandora_view_datastream(AbstractDatastream $datastream, $download = F
     $extension = '.' . $mime_detect->getExtension($datastream->mimetype);
 
     // Prevent adding on a duplicate extension.
+    $label = $datastream->label;
     $extension_length = strlen($extension);
-    $duplicate_extension_position = strripos($datastream->label, $extension, -$extension_length);
-    $filename = $datastream->label;
+    $duplicate_extension_position = strlen($label) > $extension_length ?
+      strripos($label, $extension, -$extension_length) :
+      FALSE;
+    $filename = $label;
     if ($duplicate_extension_position === FALSE) {
       $filename .= $extension;
     }
diff --git a/includes/mime_type.autocomplete.inc b/includes/mime_type.autocomplete.inc
new file mode 100644
index 00000000..3ac31079
--- /dev/null
+++ b/includes/mime_type.autocomplete.inc
@@ -0,0 +1,27 @@
+<?php
+/**
+ * @file
+ * Autocomplete functionality for MIME types in Islandora.
+ */
+
+/**
+ * Autocomplete the MIME type name.
+ *
+ * @param string $string
+ *   A search string.
+ *
+ * @return string
+ *   The rendered JSON results.
+ */
+function islandora_mime_type_autocomplete($string) {
+  module_load_include('inc', 'islandora', 'includes/mime_detect');
+  $mime_detect = new MimeDetect();
+  $mime_types = $mime_detect->getMimeTypes();
+  $output = array();
+  foreach ($mime_types as $mime_type) {
+    if (preg_match("/{$string}/i", $mime_type) !== 0) {
+      $output[$mime_type] = $mime_type;
+    }
+  }
+  return drupal_json_output($output);
+}
diff --git a/includes/regenerate_derivatives.form.inc b/includes/regenerate_derivatives.form.inc
index a7ef147c..7fd8d059 100644
--- a/includes/regenerate_derivatives.form.inc
+++ b/includes/regenerate_derivatives.form.inc
@@ -99,7 +99,7 @@ function islandora_regenerate_object_derivatives_batch(AbstractObject $object) {
     'title' => t('Regenerating all derivatives for @label', array('@label' => $object->label)),
     'operations' => islandora_do_batch_derivatives($object, array('force' => TRUE)),
     'init_message' => t('Preparing to regenerate derivatives...'),
-    'progress_message' => t('Time elapsed: @elapsed <br/>Estimated time remaning @estimate.'),
+    'progress_message' => t('Time elapsed: @elapsed <br/>Estimated time remaining @estimate.'),
     'error_message' => t('An error has occurred.'),
     'file' => drupal_get_path('module', 'islandora') . '/includes/regenerate_derivatives.form.inc',
     'finished' => 'islandora_regenerate_derivative_batch_finished',
@@ -124,7 +124,7 @@ function islandora_regenerate_datastream_derivative_batch(AbstractDatastream $da
         'destination_dsid' => $datastream->id,
     )),
     'init_message' => t('Preparing to regenerate derivatives...'),
-    'progress_message' => t('Time elapsed: @elapsed <br/>Estimated time remaning @estimate.'),
+    'progress_message' => t('Time elapsed: @elapsed <br/>Estimated time remaining @estimate.'),
     'error_message' => t('An error has occurred.'),
     'file' => drupal_get_path('module', 'islandora') . '/includes/regenerate_derivatives.form.inc',
     'finished' => 'islandora_regenerate_derivative_batch_finished',
diff --git a/includes/tuque_wrapper.inc b/includes/tuque_wrapper.inc
index 98e9c62c..d30af147 100644
--- a/includes/tuque_wrapper.inc
+++ b/includes/tuque_wrapper.inc
@@ -298,7 +298,14 @@ class IslandoraFedoraApiM extends FedoraApiM {
 
         default:
           $ret = parent::purgeDatastream($pid, $dsid, $params);
-          islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_PURGED_HOOK, $object->models, $dsid, $object, $dsid);
+          // We need to remove this object from the cache and reload it as
+          // Tuque may not have an updated copy. That is the datastream could
+          // still be present within the object even though it's purged out of
+          // Fedora.
+          $tuque = islandora_get_tuque_connection();
+          $tuque->cache->delete($pid);
+          $non_cached_object = islandora_object_load($pid);
+          islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_PURGED_HOOK, $non_cached_object->models, $dsid, $non_cached_object, $dsid);
           return $ret;
       }
     }
diff --git a/includes/utilities.inc b/includes/utilities.inc
index d858ff0c..e5d60b95 100644
--- a/includes/utilities.inc
+++ b/includes/utilities.inc
@@ -528,7 +528,7 @@ function islandora_display_repository_inaccessible_message() {
   $link = l($text, 'admin/islandora/configure', array('attributes' => array('title' => $text)));
   $message = t('Could not connect to the repository. Please check the settings on the !link page.',
   array('!link' => $link));
-  drupal_set_message(check_plain($message), 'error', FALSE);
+  drupal_set_message(filter_xss($message), 'error', FALSE);
 
 }
 
@@ -981,3 +981,17 @@ function islandora_scale_thumbnail($file, $width, $height) {
   }
   return FALSE;
 }
+
+/**
+ * Determines if the server operating system is Windows.
+ *
+ * @return bool
+ *   TRUE if Windows, FALSE otherwise.
+ */
+function islandora_deployed_on_windows() {
+  // Determine if PHP is currently running on Windows.
+  if (strpos(strtolower(php_uname('s')), 'windows') !== FALSE) {
+    return TRUE;
+  }
+  return FALSE;
+}
diff --git a/islandora.api.php b/islandora.api.php
index 51aeb343..0534ffe7 100644
--- a/islandora.api.php
+++ b/islandora.api.php
@@ -466,6 +466,19 @@ function hook_islandora_ingest_steps(array $form_state) {
     ),
   );
 }
+
+/**
+ * Alter the generated ingest steps.
+ *
+ * @param array $steps
+ *   An array of steps as generated by hook_islandora_ingest_steps().
+ * 
+ * @param array $form_state
+ *   An array containing the Drupal form_state.
+ */
+function hook_islandora_ingest_steps_alter(array &$steps, array &$form_state) {
+}
+
 /**
  * Content model specific version of hook_islandora_ingest_steps().
  *
@@ -479,6 +492,18 @@ function hook_islandora_ingest_steps(array $form_state) {
 function hook_CMODEL_PID_islandora_ingest_steps(array $form_state) {
 }
 
+/**
+* Alter the generated ingest steps for the given content model.
+ *
+ * @param array $steps
+ *   An array of steps as generated by hook_islandora_ingest_steps().
+ * 
+ * @param array $form_state
+ *   An array containing the Drupal form_state.
+ */
+function hook_CMODEL_PID_islandora_ingest_steps_alter(array &$steps, array &$form_state) {
+}
+
 /**
  * Object-level access callback hook.
  *
diff --git a/islandora.drush.inc b/islandora.drush.inc
index 6ba73cb5..876f6e39 100644
--- a/islandora.drush.inc
+++ b/islandora.drush.inc
@@ -70,7 +70,23 @@ function islandora_drush_command() {
     ),
     'bootstrap' => DRUSH_BOOTSTRAP_DRUPAL_LOGIN,
   );
-
+  $commands['islandora-solution-pack-install-content_models'] = array(
+    'description' => dt('Install Solution Pack content models.'),
+    'options' => array(
+      'module' => array(
+        'description' => dt('The module for which to install the content models.'),
+        'required' => TRUE,
+      ),
+    ),
+    'aliases' => array('ispicm'),
+    'drupal dependencies' => array(
+      'islandora',
+    ),
+    'examples' => array(
+      'drush -u 1 ispicm --module=islandora' => dt('Install missing solution pack objects for the "islandora" module.'),
+    ),
+    'bootstrap' => DRUSH_BOOTSTRAP_DRUPAL_LOGIN,
+  );
   return $commands;
 }
 
@@ -83,9 +99,7 @@ function drush_islandora_solution_pack_install_required_objects() {
   $module = drush_get_option('module');
   if (module_exists($module)) {
     islandora_install_solution_pack(
-      $module,
-      'install',
-      drush_get_option('force', FALSE)
+        $module, 'install', drush_get_option('force', FALSE)
     );
   }
   else {
@@ -104,8 +118,7 @@ function drush_islandora_solution_pack_uninstall_required_objects() {
   $module = drush_get_option('module');
   if (module_exists($module)) {
     islandora_uninstall_solution_pack(
-      $module,
-      drush_get_option('force', FALSE)
+        $module, drush_get_option('force', FALSE)
     );
   }
   else {
@@ -152,3 +165,37 @@ function drush_islandora_solution_pack_required_objects_status() {
     drush_print_table($rows, $header, $widths);
   }
 }
+
+/**
+ * Command callback to install required objects.
+ */
+function drush_islandora_solution_pack_install_content_models() {
+  module_load_include('inc', 'islandora', 'includes/solution_packs');
+  $module = drush_get_option('module');
+  if (module_exists($module)) {
+    $info = islandora_solution_packs_get_required_objects($module);
+    $objects_to_add = array();
+    foreach ($info['objects'] as $key => $candidate) {
+      if (in_array('fedora-system:ContentModel-3.0', $candidate->models)) {
+        $objects_to_add[] = $candidate;
+      }
+    }
+    if (count($objects_to_add) > 0) {
+      foreach ($objects_to_add as $object_to_add) {
+        $old_object = islandora_object_load($object_to_add->id);
+        if ($old_object) {
+          $deleted = islandora_delete_object($old_object);
+          if (!$deleted) {
+            drush_log(dt('@object did not delete.', array('@object' => $old_object->id), 'error'));
+            continue;
+          }
+        }
+        $new_object = islandora_add_object($object_to_add);
+        $verb = $deleted ? dt("Replaced") : dt("Added");
+        if ($new_object) {
+          drush_print("$verb " . $object_to_add->id . " - " . $object_to_add->label);
+        }
+      }
+    }
+  }
+}
diff --git a/islandora.module b/islandora.module
index 8e480baa..9e7809eb 100644
--- a/islandora.module
+++ b/islandora.module
@@ -62,6 +62,7 @@ define('ISLANDORA_DERVIATIVE_CREATION_HOOK', 'islandora_derivative');
 
 // Autocomplete paths.
 define('ISLANDORA_CONTENT_MODELS_AUTOCOMPLETE', 'islandora/autocomplete/content-models');
+define('ISLANDORA_MIME_TYPES_AUTOCOMPLETE', 'islandora/autocomplete/mime-types');
 
 /**
  * @deprecated Constants.
@@ -358,6 +359,15 @@ function islandora_menu() {
     'access arguments' => array('administer site configuration'),
     'type' => MENU_CALLBACK,
   );
+  $items[ISLANDORA_MIME_TYPES_AUTOCOMPLETE] = array(
+    'title' => 'Autocomplete callback',
+    'description' => 'Autocomplete MIME Types.',
+    'file' => 'includes/mime_type.autocomplete.inc',
+    'page callback' => 'islandora_mime_type_autocomplete',
+    'page arguments' => array(3),
+    'access arguments' => array('administer site configuration'),
+    'type' => MENU_CALLBACK,
+  );
   $items['admin/islandora/restore/prep'] = array(
     'description' => 'Restore or permanantly remove objects with Deleted status',
     'title' => 'Manage Deleted Objects',
@@ -870,7 +880,8 @@ function islandora_object_manage_access_callback($perms, $object = NULL) {
 function islandora_manage_overview_object(AbstractObject $object) {
   module_load_include('inc', 'islandora', 'includes/utilities');
   $output = array();
-  foreach (islandora_build_hook_list(ISLANDORA_OVERVIEW_HOOK, $object->models) as $hook) {
+  $hooks = islandora_build_hook_list(ISLANDORA_OVERVIEW_HOOK, $object->models);
+  foreach ($hooks as $hook) {
     $temp = module_invoke_all($hook, $object);
     islandora_as_renderable_array($temp);
     if (!empty($temp)) {
@@ -882,7 +893,7 @@ function islandora_manage_overview_object(AbstractObject $object) {
     $output = islandora_default_islandora_manage_overview_object($object);
   }
   arsort($output);
-  drupal_alter(ISLANDORA_OVERVIEW_HOOK, $object, $output);
+  drupal_alter($hooks, $object, $output);
   islandora_as_renderable_array($output);
   return $output;
 }
@@ -1027,11 +1038,9 @@ function islandora_view_object(AbstractObject $object) {
 /**
  * This will prepare an object to be printed.
  *
- * By default, all fedora objects can print DC record data,
- * however, Solution packs that wish to modify the form
- * to be printed must implement hook_islandora_view_print_object_alter,
- * create a theme.tpl.php file, and return its markup by calling
- * theme(themename.tpl.php).
+ * By default all fedora objects can print DC record data. Solution packs that
+ * wish to modify the data to be printed can implement
+ * hook_islandora_view_print_object or hook_islandora_metadata_display_info.
  *
  * @param AbstractObject $object
  *   The object to print.
diff --git a/tests/scripts/travis_setup.sh b/tests/scripts/travis_setup.sh
index 3a52bb75..c1bd7751 100755
--- a/tests/scripts/travis_setup.sh
+++ b/tests/scripts/travis_setup.sh
@@ -21,7 +21,15 @@ pear channel-discover pear.phpqatools.org
 pear channel-discover pear.netpirates.net
 pear install pear/PHP_CodeSniffer-1.4.8
 pear install pear.phpunit.de/phpcpd
-pear install drush/drush-5.9.0
+
+# Install Drush
+git clone https://github.com/drush-ops/drush.git
+pushd drush
+git checkout 5.9.0
+chmod +x drush
+popd
+sudo ln -s $HOME/drush/drush /usr/local/sbin
+
 phpenv rehash
 drush dl --yes drupal
 cd drupal-*
diff --git a/theme/islandora-object-img-print.tpl.php b/theme/islandora-object-img-print.tpl.php
deleted file mode 100644
index 3ff21455..00000000
--- a/theme/islandora-object-img-print.tpl.php
+++ /dev/null
@@ -1,18 +0,0 @@
-<?php
-
-/**
- * @file
-* The default view to theme an image of an object.
-* 
-* This view is passed into 'islandora-object-print' theme file
-* and is rendred as an image. Allows for seperate theming of image
-* and metadata.
-*
-*/
-
-?>
-<?php if (isset($islandora_content)): ?>
-  <div>
-    <?php print $islandora_content; ?>
-  </div>
-<?php endif; ?>