Implemented bulk move of discussions
Fixed issue where last post information is incorrect when a discussion is moved.
Don't update the user table cache if we've cached permissions elsewhere.
Merge branch 'master' of github.com:vanillaforums/Garden
Try not to clear permissions if using caching.
Merge pull request #1511 from Shoat/master

Bulk Move Discussions
ImportModel:
- Don't insert columns that start with a "_".
- Fix permission imports for databases with junction tables.
Added xenforo password hash.
Added the Gdn_Dispatcher_NotFound event.
Allow memory-only routes.
Apply SetRoute change.
Add classes to edit profile form
Allow tables to have reserved word names like "Group".
Merge branch 'master' of github.com:vanillaforums/Garden
Added the .StructuredForm class to be used along-side .FormWrapper.
Title should be a getter too.
Add ForbiddenException() and change the response code for PermissionException().
Datepickerize
Merge branch 'master' of github.com:vanillaforums/Garden
Added Gdn_Form->ImageUpload() and Gdn_Form->CurrentImage() along with some css to handle it.