Wind data average saved into database once per hour 

- Created a saveWind function for saving average wind data every hour (if wind speed = 0, wind direction is invalid)
- Updated README and temperature24h.plt
- Fixed english language issues
- Sending error messages, warning messages and binary data (printArray()) to stderr
- Added some comments to source code
- Bug fix where MSB in wind direction not was read (bit 23)

The files auriol-start.sh, auriol-restart.sh and auriol-watchdog.sh have not been updated since I changed name to auriol-reader again. 
The makefile needs an install target to place auriol-reader into /usr/local/bin, copy www to the right place and the start-up scripts into /etc/init.d

I am not intrested in the www directory, so I have still not looked into these files, although PHP is my language.

My aneometer does not work properly at temperatures below 0 C. Transmissions seems to be too weak (distance < 150 cm with a wooden roof and clay tiles inbetween) so I have not tested everything properly.

Regards
Hasse