Merge tag '0.3.0' into develop

0.3.0 version
Fixed README
Upgraded Ember and ED, changes in the config so that it handles different sources for prod and dev build process
Cake task to update Twitter Bootsrtap, removed obsolete files in latest bootstrap
Upgrading bootstrap libraries and styles and fixing a few errors related to them
Updating readme, changelog and package.json for the new release
Merge branch 'release/0.4.0'