Updated case-sensitive Alpaca calls by Davide. Updated Focuser and Rotator astelco methods by Andrea

Correcting case in ascom.py to compatibility with standard Alpaca. Implementing in astelco.py the methods of astelco2.py by Andrea Damonte

Moved CommandBlind to base ASCOM class as it should be, started mocking the ascom/Focuser(ASCOMDevice) as astelco/Focuser(OpenTSI)

Webcam has a couple of presets to look up for lazy people.
Unique form for radec and simbad query.
Now ready for live status.

Observation template now appends filenames.
Stop will have to stop the template and not the bare camera.
Validated HTML.

Started adding error management on the api. Modified error decorators. changed ip address of the domotics devices.