Bump up API version to 4.1.0.
Removes unused settings from AndroidManifest.xml.
Replaces the USB serial library and removes the duplicate class.
Bump up API version to 4.1.0.
Adds Mbed device vendor IDs.
Removes the old USB serial library binary.
Reflects the latest info to README.
Merge branch 'feature/applying_API_changes' into develop
Adds change history.
Merge branch 'release/1.1.0' into develop