Aero AIO: cpu/mem plugin mod 2.1.3

Aero AIO: cpu/mem plugin mod is a mod of the cpu/memory plugin for aero aio. The hardware information is gathered via backends. You can easily write a python backend for your hardware.
Look at the files cpumemv2_backend.py, cpumemv2_default.py and cpumemv2_i8k.py to learn how to write backends.
Main features:
- default backend that supports CPU temeratures via /proc/acpi/thermal_zone and hard disk temperatures via hddtemp. You can start hddtemp by (as root)
- hddtemp -d /dev/hda
- Replace hda with the hard disk you want monitored.
- ibmacpi backend (for IBM laptops). Thanks to Frank Fiene. Supports CPU, GPU, hdd, fan and pci data, via the ibm acpi kernel module. Boy those IBM laptops have a lot of sensors!
- i8k backend (for Dell laptops). Supports cpu temp and fan speeds via the i8k kernel module.
- The backends are cascaded. The code automatically looks through all backends for support of each feature. the final feature set is the union of all backends
- If an update temporarily fails (this tends to happen with hddtemp), it is indicated on the theme by the : in front of the sensor name becoming an _