GROOVY-7040: Builder annotation should provide default values for forClass, prefix, builderClassName, buildMethodName, builderMethodName
GROOVY-7040: Builder annotation should provide default values for forClass, prefix, builderClassName, buildMethodName, builderMethodName (slightly more generic solution)
GROOVY-7040: Builder annotation should provide default values for forClass, prefix, builderClassName, buildMethodName, builderMethodName (additional refactoring)
Merge pull request #506 from paulk-asert/groovy7040

GROOVY-7040: Builder annotation should provide default values for forCla...
GROOVY-6452: @Grab group element is documented as optional but the implementation requires it
typo