RESTEASY-699
RESTEASY-699: Remove file r0.
Merge remote-tracking branch 'origin/master_RESTEASY_699'
RESTEASY-699: Correct typo in MediaTypeHeaderDelegate.
RESTEASY-916: Adding XML and JSON formats for validation violation
reports.
RESTEASY-916: XML and JSON for resteasy-hibernatevalidator-provider
RESTEASY-916: Updated validation chapter in Resteasy documentation.
RESTEASY-913
Merge pull request #371 from ronsigal/master

master