ignore activated extensions

git-svn-id: file:///home/shish/svn/shimmie2/trunk@1137 7f39781d-f577-437e-ae19-be835c7a54ca

.gitignore

@@ -2,3 +2,43 @@ config.php
 images
 thumbs
 sql.log
+ext/autocomplete
+ext/ban_words
+ext/browser_search
+ext/bulk_add
+ext/danbooru_api
+ext/downtime
+ext/emoticons
+ext/et
+ext/event_log
+ext/featured
+ext/handle_archive
+ext/handle_flash
+ext/handle_ico
+ext/handle_mp3
+ext/handle_svg
+ext/home
+ext/image_hash_ban
+ext/ipban
+ext/link_image
+ext/news
+ext/notes
+ext/numeric_score
+ext/piclens
+ext/pm
+ext/random_image
+ext/rating
+ext/regen_thumb
+ext/report_image
+ext/res_limit
+ext/rss_comments
+ext/rss_images
+ext/simpletest
+ext/site_description
+ext/svn_update
+ext/tag_history
+ext/tagger
+ext/text_score
+ext/wiki
+ext/word_filter
+ext/zoom