* (android) Read config.xml for statusbar overlay preference
* Added information on the ability to use #AARRGGBB hex string format if StatusBarOverlaysWebView is true
* Added `<preference name="StatusBarOverlaysWebView" value="true" />` to the default android block for consistentency for iOS.
This closes#77
This patch enables devices running Android API 21+ to have the status bar overlaying the WebView, i.e. `StatusBar.overlaysWebView(true)`. It lets any Android version call `StatusBar.overlaysWebView(false)` to disable the overlay, which is actually the default behavior on that platform.
This change is fix for the following warning message at startup:
W/CordovaPlugin( 6470): Attempted to send a second callback for ID:
StatusBar1091036409
W/CordovaPlugin( 6470): Result was: "Invalid action"
Norman Breau