Add index landing page

(cherry picked from commit 84bdd27892f818c4200a2a7de7d5afa4f1937812)
Add br before results on index

(cherry picked from commit fe78f269d234c54fdd4252059a8c8c00556f2b3d)
Add placeholder to index

(cherry picked from commit 5599922d82068df107937f375304481bae13f790)
Widen search box

(cherry picked from commit cb21d3e037618f7aee36d26a9527ad9e36add960)
Merge branch 'master' of github.com:ryanfb/pleiades-static
Fill out update script, move to update-cron.sh
bundle install first
Merge branch 'master' into gh-pages
2014-12-15 pleiades-static update