Capitalize the first letter of the governor names.

Just nicer IMHO.
Merge pull request #18 from micheleg/improvements_capitalize_governor_names

Capitalize the first letter of the governor names.
Removed cpufreq and uses only cpupower now
Also removed all needless documentation since cpufreq isnt supported
anymore I can add back support easy if you wish just PM me.
Added policy for logind / polkit and fixed menu
clean up of code
Using cpufrequtils
Fix typo
Center align Label
Support intel-pstate driver.

Intel P-state driver was introduced in linux-3.9 (default in linux-3.10 I
think)and doesn't support directly frequencies. It allows only to switch
between the two available governors: performance and powersave. Show the
governor name instead of the frequency
Capitalize the first letter of the governor names.

Just nicer IMHO.
Add basic Makefile to install the extension in the local home dir.

The polkit policy is not installed.