Revert "removing .gitignore"

This reverts commit a16257e423.

.gitignore

@@ -0,0 +1,25 @@
+cache.properties
+.DS_Store
+
+islandora.info~
+
+includes/solution_packs.inc~
+
+islandora.module~
+
+tests/islandora_authtokens.test~
+
+tests/islandora_basic_collection_manage_permissions.test~
+
+tests/islandora_manage_perm.test~
+
+tests/islandora_manage_permissions.test~
+
+tests/islandora_web_test_case.inc~
+
+theme/islandora-object.tpl.php~
+
+theme/islandora.theme.inc~
+
+tests/test_config.ini
+