Fix file browser not showing files with uppercase extensions
Add image thumbnail in file browser
Add image thumbnail in file browser
Added ability to add extra filters per contenttype.
New feature: added 'depublish on..' to add expiration date for any content. Fixes #486
Merge branch 'master' of https://github.com/bolt/bolt
Added @todo for search content filter.
Fixed issue when (de)publishing automatically.

Checks were run before the table existence check.
Fixed typo.
Started stripping the major getContent method.
Merge branch 'master' of github.com:bolt/bolt

Conflicts:
	app/classes/lib.php
Refactoring config into an Object. Very much a work in progress.
Removing clutter. Part of refactoring config.
More work on config refactoring..
Wroking on config
Finished most of the new getContent code.

Still to finish testing and a bit more documentation.
Added ordering of results.

Still needs testing and 'filter' is missing.
Working on config Object. Part of #512.
Getting more work done on #512.
Missed one. #512.