#215 change RetentionPolicy to CLASS for @MapperConfig
#217 provide source-jars for modules core and processor
#14 Add basic support for @AfterMapping / @BeforeMapping methods
#14 support @TargetType in @AfterMapping/@BeforeMapping methods
Fix error message for subsequent tests that fail with compile errors
#14 some improvements as hinted in code review by Sjaak, added / extended some test cases