Added new project "org.foam.bootstrap".
It should contain functions required by other FOAM subprojects.
However, the bootstrap project should be on top of the dependency hierarchy.
Changed logging in graphviz wrapper and nusmv wrapper.
Both should now write "debug" instead of "info" messages.
refactoring IterableExtensions (moved to bootstrap project) and UcmUtils (renamed to UseCaseModelExtensions)
Merge branch 'cleanup'