add a sticky footer

also removed unused footer tag
a minimal description of what the app does - link to it
bootstrap v3 looks good except for home page

also got rid of pedestal.css
bootstrap v3 compatible

* removed old crap styling for less crappy styling
* added greeting in search box
organize semtag-web.css
indent html
add local bootstrap v3, add back pedestal.css for aspect switcher
move top-level changes back to application.html
window needs to be resized in tests now that app is actually responsive