A bit more polish for wizard and mock guides dashboard page.
STS-3391: added interface retrieval operation to TypeHierarchyEngine
STS-3391: optimized isSpringDataRepository implementation by using the type hierarchy engine
fixed issue with NoRepositoryBean, no longer checked on super interfaces
Guides Wizard: add a 'open home page' checkbox and a searchbox
Add some fake guides to the content manager for testing.
Merge branch 'master' of github.com:SpringSource/spring-ide
GSG wizard: make codesets section dynamic based on selected guide
Fix text wrap issue in GSG wizard description