Socket event filtering

This release adds an event filtering mechanism for SocketIO and Primus Socket connections so that event data can be modified and only dispatched to certain clients. Also adds support for a patch service method.

• Allow socket provider event filtering and params passthrough (#49, #50, #51)
• Added patch support (#47)
• Allow to configure REST handler manually (#40, #52)

Primus and custom server support, better configuration

• Added Primus provider (#34)
• app.setup(server) to support HTTPS (and other functionality that requires a custom server) (#33)
• Removed bad SocketIO configuration (#19)
• Add .npmignore to not publish .idea folder (#30)
• Remove middleware: connect.bodyParser() (#27)