Set minimum allowed frequency.

[XeromX]

I would like to set minimum frequency 1.7 Ghz regardless of temperature, currently it can go down to 400mhz which is making computer too slow. My goal is to have a silent computer and prevent fan from turning on so I set max temp 53 degrees.
Would you be so kind and to give some more settings to users in which it is going to be possible to set minimum allowed frequency?

[Sepero]

This is possible with a single edit to the script. See issue #54