Fix bug where users can edit any comment by modifying the request.
Markdown changes:
- Format spoilers in a div instead of a block quote.
- Format code as a block if there is at least one
Conversations:
- Make the notification headline the subject if it's there.
- Add GDN_Conversation.Type for future use.
Allow messages to filter by category.
vB imports: set guest posts to System
Merge branch 'master' of github.com:vanillaforums/Garden
$Config should always be an array.
$DefaultConfig should also always be an array
Roles may be personal info
Update class.activitymodel.php

Fixed NotifyWallPost which does not store Format, RegardingUserID and Story into table Activity when inserting second line for wallpost-activity
Revert "Roles may be personal info"

This reverts commit ef759d43bf82e165691647a18f730a8b34f7560c.
Roles may be personal info (refactored)
Fixed bug where RandomString() didn't include the last character.
Fixed the formatting of zero numberic values in FormatString().
Change the unban message to a dismiss message.
Merge branch 'master' of github.com:vanillaforums/Garden
Make nested popups position properly within embedded context.
Add Just-In-Time email hook prior to sending.
Merge branch 'master' of github.com:vanillaforums/Garden
Add Just-In-Time email hook prior to sending.