Merge pull request #3 from joa/master

Add GotoDeclarationHandler for @Macro and @Delegate
Merge pull request #4 from joa/master

Add PsiReferenceContributor and ResolveScopeProvider
Merge pull request #5 from joa/master

Add usage provider for defrac annotations
Merge pull request #6 from joa/master

Implementation of DefracFacet and DefracConfigurationType
Merge pull request #7 from joa/master

Implementation of DefracProjectView
Merge pull request #8 from joa/master

Fix broken source

IntelliJ IDEA's copyright insertion decided to break our source-code