code: function hasSupportVersion4() {
  	//noinspection JSUnresolvedVariable
  	if (!android.support || !android.support.v4 || !android.support.v4.content || !android.support.v4.content.ContextCompat || !android.support.v4.content.ContextCompat.checkSelfPermission) {
  		return false;
  	}
  	return true;
  }
docs: Checks to see if v4 is installed and has the proper calls with it
  @returns {boolean}