change the range of color.coded speeds

[Google Code Exporter]

I used for a bike ride. My range of speeds were 4mph to 44 mph. It would be 
nice to have a variable ramge for the colors..... Also is there a srtting to 
keep screen and not go into sleep mode? 



hat steps will reproduce the problem?
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What is the expected output? What do you see instead?

Which Android device are you using?

What version of Android are you running?

What version of the Open GPS Tracker are you running?

Please provide any additional information below.

Original issue reported on code.google.com by [e-mail] on 21 Jun 2014 at 11:43