Merge pull request #2 from intalio/K2

K2
JIRA WF-1449 Visibility of ui-fw tabs based on user(s)/role(s) enhancement added.
JIRA WF-1451 Implemented. place wildcard "*" in roleOwners,Task will be assigned to all.
JIRA WF-1595 ( Display users name instead of user's username in the different User Interfaces ) Implemented.
Merge pull request #33 from bapiraju/K2

K2