PB icon displays in footer. Fixes #34.

Needed to reference it with the asset-url()
helper, instead of just url(). Also moved
style rules for this icon into pfr.scss.
Sidebar inputs lighten on focus.

This was necessary to fix an issue where Safari
did not understand the selector for highlight
color.
added class ".input-search-small" to selector "#keyword" in css

this happened as a result of me changing the height of the keyword search
input field in the blue sidebar, setting the id "keyword" to heigh 44px
because the seach field on the home page also has the id "keyword",
the rule applied to both
this is a result of sloppy css.  an id should only apply to a unique element
on a page.  my solution works for now, but we might want to think about cleaning
up this css and looking for other instances of mishandled class vs id selectors
Merge branch 'force-error' of github.com:purplebinder/ohana-web-search into force-error
fixed horrible looking layout bugs so we can deploy the new error pages on stage
Merge branch 'force-error' of github.com:purplebinder/ohana-web-search into force-error
Fixed URLs in error page links.