SPEC: HandleChannel: be singular
util: factor out tp_tests_dup_channel_props_asv()
HandleChannel() is now singular
SPEC: ChannelDispatchOperation, Approver: be singular
Approver is now singular
SPEC: HandleWithTime: fold into HandleWith
HandleWithTime() has been removed
SPEC: Handler.HandleWith::User_Action_Time: use a signed type
Handler.HandleWith::User_Action_Time: use a signed type
SPEC: Abolish Channel.I.DTMF
base-call-channel: DTMF interface has been merged into Call1
SPEC: NewChannel and ObserveChannel are now singular
NewChannels -> NewChannel and ObserveChannel singular
SPEC: move RequestableChannelClasses to Connection
RequestableChannelClasses has been moved to Connection
rename TpObserveChannelsContext to TpObserveChannelContext
Observer high level API: make singular
rename TpHandleChannelsContext to TpHandleChannelContext
Handler high level API: make singular
Approver high level API: make singular