static/css:

Added extjs app-specific styling for the page footer.
templates:

More tweaks to the extjs template styling...
I'm trying to get the footer to behave correctly.
isc_viewer/templates/isc_viewer.html:

Cleaned up a template block closing tag.
templates/extjs_base.html:

Removed some hacky css for extjs apps.
static/css/oqplatform.css:

Fixed a minor bug with the presentation of the banner background image.
isc_viewer, extjs_base.html:

WIP on app layout.