Shares namespace with MessageBus

[mikz]

This gem can't be loaded together with message_bus. Loading this gem will cause message_bus to crash:

ArgumentError (wrong number of arguments (given 2, expected 1)):
  message_bus-client (0.1.0) lib/message_bus/client/message_handler.rb:29:in `subscribe'
  message_bus (2.0.2) lib/message_bus/rack/middleware.rb:104:in `block in call'
  message_bus (2.0.2) lib/message_bus/rack/middleware.rb:100:in `each'
  message_bus (2.0.2) lib/message_bus/rack/middleware.rb:100:in `call'

Because it redefines MessageBus::Client.

This gem should not reuse MessageBus namespace and use its own to prevent conflicts.

[lowjoel]

Wow. This is painful. I imagine that most related gems share namespaces instead of making them disjoint. I can't seem to think of any alternative that does not require a renaming of the gem. I'll have to consider this further.

However, feel free to rename it as you'd like for your own use in the meanwhile.