Moving messages test to new class
Adding tests when getting messages by severity
Rollback undesired code change
Fixing extracted objects
Using EL Expression tests for messages
Renaming legacy class Error* to Message*
Merge pull request #770 from caelum/ot-messagestestwith-el

Using EL Expression tests for messages
Merge pull request #769 from caelum/ot-messagestest

Improving messages test