Updated build to use latest build tools

Added support for Marshmallow on Android Emulators using new build ty…

…pe that is signed with the platform keystore

Issue #4: Changed code to clear wifi configs after failed connection …

…attempt. Refactored codebase to be more clean, concise and readable

Incremented version

Added fix for a particular bug where the wpa_supplicant config gets c…

…orrupted

Fixed secured network connection and added wifi connectivity check af…

…ter proxy set in order to catch invalid settings