Implement Validation.filter, close #1264
Closes #1182
Changes recorder so that PauseElement are inserted before TagElements
Merge pull request #1265 from Skeebl/master

Close #1182
Scalariform
Run Zinc in forked process, close #1256
Fix sample
Make Zinc process JVM args configurable, see #1256
Make tryMax log failed groups,  close #1266