JSCoreBridge class added
adjusted the Bridge to pass on objects and not strings..
added reference to JsCoreBridge to the change log.
improved the lifecycle of the jsCore native interface. so when the native code is ready it notifies the steroids code.
removing the registration of the message_handler. this is done in the native code.
WebsocketBridge isUsable function now returns a property called WebsocketBridge.websocketBridgeUsable which is always false.. but allow for users to change to true in case of a JsCore bug/issue
removed iOS specific code.
using steroids events to track when the jsCore Bridge is ready.
Merge pull request #68 from pentateu/topic/jsCoreBridge

Topic/js core bridge