Merge pull request #4 from bobbyc/dev

correct unit test cases
Merge pull request #5 from bobbyc/dev

accumulate merge
Merge pull request #2 from bobbyc/master

merge from bobby 08/11
Update securitygroup.py

init menber should be empty list instead of  none
Update connection.py

modify createSecurityGroup function's argrment for testing  more flexible
Update device.py

add update function for "update raid" testing
Update instance.py

add encrypt a vm function for some testing
add createRAID function's arguments for testing more flexible
Update keyrequest.py

add four functions for some testing
Merge pull request #6 from byegoal/master

Update for MAPI testing