install ClankBundle, configure it, chat almost working
some refactors, integrate better clank websockets
doc, simplify
First version of chat working using websockets
create ChatBundle, move chat feature into this bundle, create chat logs, players link, auto link urls
display quit message on client on leave
Merge branch 'feature-ratchet_clank' into dev
add vendor flush on kernel terminate, remove FlushOnKernelTerminate listener, add form theme for textarea