fix saved search grouping not being applied correctly (fixes issue #1969)

Conflicts:

	core/classes/B2DB/TBGIssuesTable.class.php
fix milestone todo list not being applied properly on page 1
change quicksearch order so that quicksearch shows newest first

Conflicts:

	core/classes/B2DB/TBGIssuesTable.class.php
improve column name and alias caching
change time offset implementation from fixed hours to DateTimeZone based offsets to include all possible offsets and use correct DST
Update strings.inc.php

Adding missing translate row
add missing functions
Update _results_normal_csv.inc.php

Added to CSV export, issue description, reproduction steps and comments
Merge pull request #168 from Ronis23/master

CVS export enhancement
Merge pull request #166 from M-O-Z-G/patch-1

Update strings.inc.php
Add the SETTING_SERVER_TIMEZONE setting to fixtures for settings table. Default it to server's default timezone.
Merge pull request #169 from azaghal/master

Add the SETTING_SERVER_TIMEZONE to settings table initial fixtures
Added "private_comment" class.
Added styling CSS for "system_comment" and "private_comment" classes.
Improved differentiation of private comments.
Merge pull request #171 from Grexeo/master

Improve differentiation of system and private comments
use getIconsetName instead of getThemeName for captcha
Merge pull request #174 from frozenice-/patch-1

use getIconsetName instead of getThemeName for captcha