am 7c343cef: Add XML Schema for runtest\'s test_defs.xml file

Merge commit '7c343cef7e7cd56aafb7b8a602ceb6462a6bbb71'

* commit '7c343cef7e7cd56aafb7b8a602ceb6462a6bbb71':
  Add XML Schema for runtest's test_defs.xml file