Shane

BluetoothLeGatt: Update Dependencies and Add Permission Checks So Devices Can Be Found

2

The changes here are for the BluetoothLeGatt project. Updates gradle dependencies and SDK versions. Addresses these issues; - https://github.com/android/connectivity-samples/issues/34 - https://github.com/android/connectivity-samples/issues/203 - https://github.com/android/connectivity-samples/issues/183 ... and possibly others. Some minor cleanup....

Hi. I created this [PR](https://github.com/android/connectivity-samples/pull/212) a few days ago. I would like to create a new PR which would include the PR from above. This new PR will remove the...