Added footer design, search results design

todo= make newsletter signup work
removed enter to test
Added browsing categories on left and broke something

not sure why the posts are showing this way when they get tagged with a
tag that has its own page. very strange. Also, might have to link to
these pages by hand because im not sure how to set their labels and
such.
added mailchimp

still need to fix error handling
Merge branch 'master' of github.com:Floriz/Littlebigdetails
Merge branch 'master' into gh-pages