Fix compilation error, will continue later
Refactor file repository
 - Only monitor folders applicable to layouts
 - Change event topic
Investigating blueprint karaf commands
Smaller run configuration
Don't use 1.7 target specific code yet (even though: THIS bundle will only do 1.7 because of java.nio.file)
- Repository layout is now pluggable
- Added two layouts: navajo and multitenant (I'll add tipi (Vaadin) and appstore later, in their own projects)
- FileRepository emits relative paths now
- FileRepository can be restarted safely
Merge branch 'master' into test