updates mlaunch test to reflect the new command interface. Added more tests.
updates mlaunch test to reflect the new command interface. Added more tests.

tomzhang/mtools,aerrami/mtools,tomzhang/mtools,corymintz/mtools,corymintz/mtools,gormanb/mtools,aerrami/mtools,corymintz/mtools,parkhyeonghwa/mtools,ces0712/mtools,gormanb/mtools,tomzhang/mtools,yaowenqiang/mtools,rueckstiess/mtools,yaowenqiang/mtools,ces0712/mtools,devkev/mtools,rueckstiess/mtools,gormanb/mtools,parkhyeonghwa/mtools,yaowenqiang/mtools,devkev/mtools,ces0712/mtools,aerrami/mtools,parkhyeonghwa/mtools,devkev/mtools