Removed docs about the stop command as it doesn't work and another solution has to be made for it to run without RatchetCommands
Resentenced the  0.3 entry a bit
Added requirements to the readme
Added CakePHP to the requirements just to be clear
server => package as Ratchet on it's own doesn't do much
Created an explanation why what is required.
Added event mention to the changelog
Added more on RPC events
Added the first code examples for pub/sub