Use of standarized caches
Now it's not needed to get adminlib to take the logo
Logo relative path is saved in the config_plugins table
File component for this filepicker is now the plugin name
File area is now settings
File is renamed to settings name
Merge branch 'wip-MDL-35434_master' of git://github.com/crazyserver/moodle into crazyserver-wip-MDL-35434_master

Conflicts:
	lib/adminlib.php
	theme/afterburner/db/caches.php
	theme/afterburner/lib.php