Added unit test for gtmroutines env var parsing script

Changed parser behavior to preserve order of directories
as set in 'gtmroutines'.

OSEHRA-Id: http://issues.osehra.org/browse/OAT-88
Change-Id: If51255c0d559d381ca9c9dbbd0c37dc2c0afd32f
Merge "Added unit test for gtmroutines env var parsing script"