Changed WebViewJavascriptBridge so that any WebView delegate methods called on it will now automatically be relayed to its delegate
Altered Mac OS X sample AppDelegate to include some example WebView delegate calls that now get called if they exist that didn't before
Added support to WebViewJavascriptBridge for capturing console.log, console.warn, and console.error messages by sending them over the bridge
 - Supports both a handler block for processing the messages as well as an optional simple dump directly to NSLog
 - JavaScript console.xxx calls still output to their standard means, we just also send the data over the bridge
 -  Note: this was implemented a separate message queue from other calls to keep things clean

Also changed the logging for un-handled requests with the 'wvjbscheme' to simply log the URL as a string rather than constructing it from parts

Added examples of usage to the Mac and iOS Example apps