added image assets and updated carousel styling
sending base url to home page via django
carousel tooltip with dummy content for now
Merge remote-tracking branch 'origin/gsaa-style' into gsaa-style
actually that attempt to rectify the base url didnt' work.  backing out of that now...
added about page images
Merge remote-tracking branch 'origin/gsaa-style' into gsaa-style
root path and /portal now go to home.html
adjusting the feedback and help buttons on the data viewer to match those on the rest of the site
minor in-progress update to The Need section of the about page
Merge remote-tracking branch 'origin/gsaa-style' into gsaa-style
Merge remote-tracking branch 'origin/gsaa-style' into next-release

Conflicts:
	marco/visualize/templates/planner.html
home page main nav boxes
Merge remote-tracking branch 'origin/gsaa-style' into gsaa-style
moving tour button up to top nav.  fixing styles for sublayer dropdowns that use the jsp scroll bar
Merge remote-tracking branch 'origin/gsaa-style' into gsaa-style
adding links to explore and visualize on home page
closes #5
Merge remote-tracking branch 'origin/gsaa-style' into gsaa-style
Merged and fixed conflicts from gsaa-style