* PTZpresets.sh should not use inverted logic for motor control.
* Allow example userscripts, calibrate at boot example.
This commit changes run.sh to only execute files in /system/sdcard/config/userscripts/startup/
if they do not end with .dist. This allows example scripts to be included in the repository.
This commit also includes an example script calibratPTZ.sh.dist that will perform a PTZ calibration at boot
and if a /system/sdcard/config/cameraposition file exists it will also move the camera to the position it defines.
To enable the calibratePTZ.sh.dist demo, or any other script, copy or rename it to NOT end in .dist.
Example:
cp /system/sdcard/config/userscripts/startup/calibratePTZ.sh.dist /system/sdcard/config/userscripts/startup/calibratePTZ.sh