CB-6997 - Deprecate obsolete CDVPlugin methods
CB-6998 - Remove CDVCommandDelegate::execute deprecated call (deprecated since 2.2)
CB-6579 - update deprecation to use CDV_DEPRECATED macro
Added WKWebView private functions.
Added WKWebView support (not unified, stripped out UIWebView use)
Updated AppDelegate.m to use WKWebView evaluateJavascript (private)
Updated templates for WebKit.framework use
Moved WKScriptMessageHandler to CDVCommandDelegateImpl
Implemented the WKWebView Cordova bridge.
Added new cordova.js to support WKWebView Cordova bridge
Fixed native commands not being called when called in a exec callback
Changed webView property of CDVPlugin to UIView.

Plugins need to coerce this into a UIWebView or WKWebView.
Merge branch 'wkwebview-only' of github.com:shazron/cordova-ios into wkwebview-only

Conflicts:
	CordovaLib/Classes/CDVPlugin.h