system dependent paths in groovy shell
Added ExecUtil.sudoAndGetOutput() with safe escaping and quoting for Mac and Linux
fix NPE
Add grails-app/resources as resources folder, not a source folder.
Merge branch 'safe-sudo-escaping'
new inference: make use of ex constraint
postpone type evaluation
new inference: eliminate delayed constrains according to 0.6.3
new inference: exact method reference
prepare for test new inference
new inference: void compatible according to return values
new inference: ignore proper types in mutual eq constraints generation
lambda: check formal params for equality, eliminate wildcards during inference according to 15.27.3