Fix : Sms now through the default message handler

Because of Googles new rules concerning sending text-messages inside apps the app now opens your default sms-handler to send the text to the heater. In previous versions the app was able to send texts within the app.

Some deprecated code was also handled to work smoothly with new os.

If you have the old app and would like to keep that feature of the app sending texts within the app then you might consider to not install this version.