Added option to edit the away status to ACP
Added option to edit the away status in MCP
Add registration date and last active time as mass mail criteria
Updated Select Box layout on Mass Mail page
This layout is more consistent with other areas of the Admin CP.
Edit Time Limit and Max Post Per Day moved to group settings
Edit Time Limit and Max Post Per Day currently exists as a board wide setting; this commit moves them to usergroup settings.
Added new group options to usergroup editing page
Online member display order

http://community.mybb.com/thread-145063.html
Revert "Fixes #2171 Function insert_id() not working in db_pgsql.php"

This reverts commit 8ea6f3dadbb1ef785d77edce677843f92f02c80d.
Fixes a problem with insert_id() in db_pgsql.php
IPv6 implementation
Fixes a problem with PMs
Preparing for 1.6.11
Fixing several of the backlogged theme issues
Updating version codes for a couple changed templates

template changes from commit #0c5c4cc
Merge pull request #86 from JN-Jones/away

Away
Fixes #2184 SID not checked in admin/modules/templates.php
Merge pull request #115 from JordanMussi/index-online

Online member display order
Merge pull request #120 from PaulBender/feature

Template group Admin Log support
WIP Buddylist modal window
Keep the `tcat` consistent with `smalltext`.
WIP Quick Login modal window