Refactored to remove dependency on statically-held persistent refs

Jira issue: WP-717
Temporarily disable applauncher's use of widgetmanager in Android

Jira issue: WP-717
Add latest binaries

Jira issue: WP-717
Correct Read pem file function call

Jira Issue: WP-758
Merge pull request #464 from ziransun/cert_read

Correct Read pem file function call
Merge pull request #462 from paddybyers/android-gc-crash2

Jira issue: WP-717: Node crash when installing a widget
Adding ability to launch Nfc scanning UI