translate the messages when you get an error in submiting a form
TRUNK-4298 Unexpected Error pops up while navigating through the concepts
Merge pull request #768 from ShubhamRai/TRUNK-4298

TRUNK-4298 Unexpected Error pops up while navigating through the concept...
Merge pull request #767 from vaibhav-hp/TRUNK-3926

TRUNK-3926 translate the messages when you get an error in submiting a form