implemented the foundation for security in angularjs application

the basic demo how to handle the ajax call gracefully when the user has been logged out. the login form is showed in every situation and when the user logs in successfully the ajax action continues where it was interrupted giving.
basic AngularJS scaffold with security

the basic angular scaffold with working security including toolbar showing only relevant menu items. it has dummy controllers so far only showing the current controller/action requested.
added example with fetching restricted resources
latest version of changes looking at editing relationship types
Added versionNumber and revisionNumber
Merge branch 'ng-dev' into feature/ModelCatalogue0.3

Conflicts:
	grails-app/conf/Config.groovy
	web-app/bower.json
testing angular security features from vlad's code with new model