Fix group matching SQL query

The check there is intended for the :members_mods_and_admins level, which is not automatically checked for normal users. Instead, the :everyone level is the one used, which would always fulfill the "alias_level in :levels" check.

This changes the :everyone level to :members_mods_and_admins, which was originally intended.
Change to case-insensitive matching in group @name matching
Merge pull request #1890 from vikhyat/hidden-category-fix

ignore exclude_category from the menu if we are trying to view the category
Add rake task for running plugin tests.
German Translation updated (client.yml)

German Locale - starred
Merge pull request #1893 from jk779/german_translation

German Client Translation updated (client.de.yml)
Merge pull request #1892 from vikhyat/plugin-tests

Add rake task for running plugin tests.
FEATURE: collapse replies to topics

when you get two replies to a topic they are now collapsed as opposed to getting two notificatons.
minor style fix
BUGFIX: notifying on new topics when topic list is not visible
FEATURE: exclude muted categories from the latest and new tabs
Revert "BUGFIX: notifying on new topics when topic list is not visible"

Was causing load more topics not to show up

This reverts commit f7bf4b2dc36882ffd56fc164ad4e82cf55c25970.
BUGFIX: make_list should only look for lists
Fixed some JSHint warnings
BUGFIX: proper handling of top_menu_items
Move updating title count to the view, to ensure the topic list is
visible when it happens.
FIX: search context was missing when searching inside a category
Updates onebox
FIX: Don't allow moving a category with children underneath another
category (creating grandchildren)
Show group icon in category badges if the category has restricted access