add language_switch
finishes language switch feature

+ updates changelog
+ updates readme
+ adds generator test
+ translates all view text
+ extends website model to return homepages
Merge branch 'develop' into feature/language_switch

* develop:
  updates to haml 0.4
  only add the gem in development mode
  updates version to 0.0.4
  updates README to reflect the need of a deploy.yml file
  bump version to 0.0.3
  bugfix: assets are already precompiled, shared assets should only be prepended to the "before_migrate.rb" file
  update rails to version 3.2.12
  separates dashboard assets from application assets
  adds info rake tasks to get a quick overview of attributes and obj_classes for a given workspace

Conflicts:
	Gemfile.lock
Merge pull request #11 from infopark/feature/language_switch

add language_switch