Merge pull request #29 from tiger-swallowtails-2014/staging

Merge MVP from Staging into Master
added ajax for live search on index
added mustache template for displaying search results on index
make book divs clickable
wrapped individual books + info in div, added jquery to pass params to speed test for specific book
ajaxified all the things
Update formatting on index.js
Block searches if another keyup within 500ms
Remove extra route from static_pages controller
Reformat bookTemplate.js
Display search results in four-column layout
Add alt tag to book images
Add thumbnail styling to book images
Add search box styling
Precompile assets
Reformat displayResults method and add button styling
Fix speed test paragraph slideDown
Add Capybara functionality for RSpec
Add wait_for_ajax helper
fixed test paragraph display, added default pic for nil book cover thumbnail