Adds I2C support to Psi's CPUTemp desklet.

Needs Psi-Disp-Themes to run.

This is my first try in Python-coding so the code is kind of sloppy.
You need to adjust Multiplier and Offset to set the temperature to the right value (similir to gkrellm).
To be sure that everything is running first remove the ~/.gdesklets/Sensors/CPUTemp
Directory of previous installations (I don't know if this is needed, just want to be sure)

Version 0.1

It`s now possible to select the temp_input file from the sysfs. If you don't 
know the location of this file simply type "find /sys -name *temp_input*" wihtin
a terminal. The input for the CPU is temp_input2 on most computers.

Version 0.12

I removed the ACPI support completly (i guess nobody who has ACPI uses a I2C desklet *g*). Additionally
I change the internal usage if the multiplier and offset which seemed to cause trouble on chips other than
mine.Some chips seem to need only a multiplier of 10000 to run correct (this means you vp_tim).

Hope this is useful. Have fun ;)

