Fix InvocationTargetException issue.

Since XWalkCordovaWebView doesn't extend XWalkView, needs to use getView() to
get the XWalkView instance.
Update Log tags
Constructors should take CordovaWebView objects
Implement stub methods to set client objects and network status
Compatibility with cordova-android client construction deferral
Merge pull request #6 from huningxin/fix-invocation-exception

Fix InvocationTargetException issue.
Merge pull request #8 from clelland/update-android-integration

Update android integration
Updating copyright notice to this year
Consistent spelling of WebChromeClient.  Android SDK wins, you can't drop Web from this, and doing so makes mistakes
Tweaking README.md:
Add missing methods: stopLoading and loadUrlIntoView
Add ICS+ fixes for webview to CrosswalkView