Cherry-picking User module modification from 17f20b45c4e1dc4082f6128a913248cb5ca91a0c
Added GSSM functionalities on User Module
Cherry-picking User module modification from 89525eaf2c7e9f9b36e0d8a4851c8a88dbbf850e
Update GXT setHeading(..) to the new setHeadingText(..) method