Restores Feature #587
Removes unnecessary spacing
Fixes #1013 feature

https://github.com/mybb/mybb/issues/1013
Small intendation issue

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Just to shorten this monster a bit...

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Added username to log

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Fixes #1104 Activating user doesn't update the cache
Fixes #899 Custom Profile Fields option for dont show on registration not working
Fixes #670 Theme Upgrading issues

Also fixes #215 Stylesheets may not have a disporder
The default theme can be deleted
Fixes #964 JavaScript bug when post edits requires moderation.

#964
Fixes #1104 Activating user doesn't update the cache #1105
Fixes #1007 account awaiting activation bug
Fixes #1113 Misnamed/missing hooks in class_moderation.php
Preparing 1.6.15
Fixes #1013
Remove overqualified selector
Forgot dot
Fixes duplicate line and adds a new clear_profile function
Fixes #1116 Counters not updated when post edits are set for auto unapproval