pf: improving scrollbars, calendar popup widget now uses same colors as the rest of the ui, adding shadows to popup dialogs, removing unused css link reference from login page, listgrid on users view now has 1 column that takes the rest of the screen's width, etc.
BZ 1124614 - if an agent's auto-update is enabled, then always update itself if its version is not the same as the latest agent version of the agent distro in the server
Merge pull request #102 from rhq-project/bug/1124614

BZ 1124614 - auto-update agent if its version doesn't match the latest agent version
[BZ 1079368] Fix potential NPE in nullable column