refactor admin API handler to work with list of messages
work client list request support
unique id for each response
work on js client to support batching
base PUB/SUB is now default
fix object/array detecting
update version
ping client method
fix js
changelog for 0.5.0 updated
configuration request limit params
docs updated
Merge branch '0.5' of github.com:FZambia/centrifuge into 0.5
update docs about Cent
describe message batching support
note client api message limit
improve logging
start implementing token expiration
work on connection
Merge branch '0.5' of github.com:FZambia/centrifuge into 0.5