Stored the quantum commands list to the variable.

By storing the quantum commands list to
the variable, the subclass can depend
the quantum shell to parse the command.

Fixes: bug 1116837

Change-Id: I0a6f3226d326cf015e262e4ddf364d6f9a91d041
Support XML request format

blueprint quantum-client-xml

Change-Id: I9db8ea7c395909def00d6f25c9c1a98c07fdde68
Merge "Support XML request format"
Merge "Stored the quantum commands list to the variable."