test aliases to enable gramatical consistancy

keeps backwards compat by not removing the previouslly non grammer matching states
and introduces new ones so user can decide which one he wants
(or keep both and still be inconsistent to annoy those that care)

lib/ansible/plugins/test/core.py

@@ -90,13 +90,17 @@ class TestModule(object):
         return {
             # failure testing
             'failed'    : failed,
+            'failure'   : failed,
             'success'   : success,
+            'succeeded' : success,
 
             # changed testing
             'changed' : changed,
+            'change'  : changed,
 
             # skip testing
             'skipped' : skipped,
+            'skip'    : skipped,
 
             # regex
             'match': match,