adding auth key to leave url
adding debug jars
implement Channel Group methods
add ChannelGroup subscription
Fix tests
add removeGroup method
working on group subscription
refactor 2 elements array response
refactor type coercion
add unsubscribe channel groups
add unsubscribeGroup; add missing subscribe methods; refactor javadoc comments for subscribe methods
fix channelGroup resubscription and timeouts
add get/remove namespaces
add pam for channel groups
update tests and CG methods
add hereNowGroup() method and tests for HereNow
add different combinations of unsubscribe for channels and channel groups and tests for them
add setGroupState() method and tests
fix compatibility with Java 1.3
remove redundant queries from ChannelGroup constructor