Merge pull request #191 from tkruse/windows_fix

Fix small bugs due to bad URL decoding
GROOVY-6160: @DelegatesTo should be @Documented
deactivate test which assumes existence of jar under user.dir/lib and fails on the buildserver
also show stacktrace for failed tests of subprojects
only scan jar files for packages to avoid FileNotFoundExceptions with unpackaged classes
GROOVY-6134: Make @DelegatesTo support mapping to a generic argument type
Code style: fix Variable names and comments
fix pattern rework
catch possible FileNotFound
Fix jar entries on windows also use normal slash
fix missing url path decode
fix missing continue (for consistency)
code style
Power asserts
invalid test (uses jar from parentclassloader anyways9