use default timeout when running test playbacks

update mocks

Add client.Connected(); switch to go modules

update mock for bridge API change

Allow subscription to all events (CyCoreSystems#102)

Allows the websocket to be created with the subscribeAll flag set, to read events outside the scope of the specified ARI application.

Add AddChannelWithOptions (CyCoreSystems#101)

Adds support for additional options to be passed when adding a channel
to a bridge.

Fixes CyCoreSystems#100

Originate: change key to referenceKey (CyCoreSystems#99)

Having the "key" field to Originate and StageOriginate is confusing.  It
is easy to think that you should pass in the key for the channel you
wish to create, rather than it being a completely optional "originator"
key.  Therefore, this patch changes the name of the variable to
`referenceKey` so as to disambiquate the two, as well as offering an
explanation in the comments.

[style] Do not mix implicit and explicit returns

Addresses CyCoreSystems#93 readability

update mocks

Merge pull request CyCoreSystems#91 from CyCoreSystems/issue-90

add MOH and StopMOH to bridge