Merge branch '224-Remove_welcome_alert' into 'master'

            Log.d(TAG, "has_done_first_time: " + has_done_first_time);

        if (!has_done_first_time) {

            setDeviceDefaults();

        }

        if( !has_done_first_time ) {

            if( !is_test ) {

                AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);

                alertDialog.setTitle(R.string.app_name);

                alertDialog.setMessage(R.string.intro_text);

                alertDialog.setPositiveButton(android.R.string.ok, null);

                alertDialog.setNegativeButton(R.string.preference_online_help, new DialogInterface.OnClickListener() {

                    @Override

                    public void onClick(DialogInterface dialog, int which) {

                        if( MyDebug.LOG )

                            Log.d(TAG, "online help");

                        launchOnlineHelp();

                    }

                });

                /* On application start 20 millisecond delay is not enough for all screen rotating animation to be complete

                    (if user use the camera in portrait mode, then it moves from portrait to landscape & then again landscape to portrait).

                    500 milliseconds delay would do the trick. */

                showAlertDialog(alertDialog, "first time load dialog dismissed", 500L);

            }

            setFirstTimeFlag();

        }