13/8/2010	Control program for new G-APD bias supply started, using previous
			program 'hvcontrol' (revision 9852).
20/8/2010	Removed the possibility to set DAC values.
17/11/2010	Added possibility for bulk transfers (ReadAll(), SetChannels())
24/11/2010	Ramping for many channels possible with bulk transfers
7/12/2010	Added dynamic mode
6/1/2011	RampVoltages() had infinite loop if crate communication stopped
19/1/2011	'hv' command crashed when no bias board was present
28/1/2011	Replaced 'hv' by 'channel' and 'pixel' commands (with new pixel
			names, the name is a number itself)
11/2/2011	Removed Lockfile (DIM will prevent starting two instances)
			Added 'crate' command. Changed signaling of program exit.
3/6/2011	Fixed bug in channel addressing from board numbers above 7.