DE: update to the strings
Merge pull request #950 from tobiasd/DE_20140426

DE: update to the strings
bug fix: event entry. long text doesn't wrap in colorbox popup
event entry: added some padding for a nicer look
code cleanup
re-added missing styles for event
code cleanup, replaced tabs with spaces
better logger format, some comments
add people in thread in autocomplete (issue #936)
issues:
tested only in quattro theme
contacts in thread will appear twice in autocomplete popup
quattro: remove 'do not edit' comments from templates
fix photo comments: use $drop array as in wall_thread and search_item
quattro: fix photo comments, small fix to search_item template
vier: remove unused .less files, fix photo comments
Merge pull request #955 from fabrixxm/quattro_photo_comments

vier, quattro: fix photo comments
New database system that uses PDO if present/Test script for doing database upgrades.
Merge pull request #953 from tugelbend/master

Vier: Fix for the display of long text event entries
The file dba.php was missing in the last commit :) Additionally there are some chamges to the update script.
Merge remote-tracking branch 'upstream/master'
The file "dbstructure.php" was corrupted. This is the right one.
Empty template to avoid errors when installing themes.