added accessors for appid and orgid in ApigeeMonitoringClient
updated header doc in ApigeeMonitoringClient.h
Added accessors for member vars of ApigeeAppIdentification. Removed ApigeeMonitoringClient accessors from previous commit.
Removed accessors from previous commit
Merge pull request #57 from amuramoto/master

New accessors in ApigeeAppIdentification & ApigeeMonitoringClient