bump rspec-rails and rspec

fix two specs by not checking for object identity
bump fixture_builder
bump guard
bump handlebars_assets
bump bootstrap-sass
bump jquery-rails
bump ruby-oembed
bump mobile-fu
bump unicorn
bump selenium-webdriver
bump rack-rewrite
bump nokogiri
bump sass and sass-rails
bump gon
bump rack
bump asset_sync
bump ffi
bump foreman
bump will_paginate