CRAFTERCMS-40: apparently firefox prevents the click event propagation on disabled textfields. Created an overlay for each field that captures the click.
CRAFTERCMS-41: dropdown control was wiping out the control's value when loading/rendering the form. Removed a call to the model updating metod, which shouldn't happen when loading the control
CRAFTERCMS-40: fixing condition, logic was backwards
CRAFTERCMS-36: validating time is not in the past on approve for publish dialog
CRAFTERCMS-34: added loading indicator for assets folder