update jquery mobile to beta1

app/views/layouts/application.mobile.haml

config/assets.yml

public/javascripts/custom-mobile-scripting.js

public/javascripts/vendor/jquery.mobile-1.0a3.min.js

public/javascripts/vendor/jquery.mobile-1.0a4.js

public/javascripts/vendor/jquery.mobile-1.0b1.min.js

public/stylesheets/vendor/images/ajax-loader.png

public/stylesheets/vendor/images/icon-search-black.png

public/stylesheets/vendor/images/icons-18-black.png

public/stylesheets/vendor/images/icons-18-white.png

public/stylesheets/vendor/images/icons-36-black.png

public/stylesheets/vendor/images/icons-36-white.png

public/stylesheets/vendor/jquery.mobile-1.0a3.min.css

public/stylesheets/vendor/jquery.mobile-1.0a4.min.css

public/stylesheets/vendor/jquery.mobile-1.0b1.min.css

spec/models/contact_spec.rb