[CB-3069] Fix InAppBrowser load events (for non-redirecting pages)

Also adds in some extra logging that is disable by default.
InAppBrowser: Don't inject iframe bridge until necessary.
[CB-3067]: fixing ios5 whitelist of file url
[CB-3066] Fire onNativeReady from JS, as bridge is available immediately
[CB-3067] Revert CDVURLProtocol to not whitelist file urls