v1.2.0

Added an IStreamContainer interface to be used by external libraries to reduce the amount of stream_select calls
Added PHPWebSocket::MultiUpdate to handle multiple IStreamContainers using a single stream_select
Added an abstract AConnection for Client and Connection to reduce the amount of duplicate code
Added support for IPC socket pairs using a websocket server
Added a seperate accepting connection class
Added a writeRaw method
Redid the file and folder structure to match the namespace + class names
Redid the disconnect handling