Updating Travis CI config to test in Go 1.2 when it is available.
Added a color conversion module. The first function converts hex color values as strings to RGB as int64 values.
Removing go version 1.0 from Travis CI testing as 1.1 and 1.2 support should be sufficient. I'd be surprised if anyone was still using go 1.0.
Updating the response values from the hex to rgb conversion to be in a format color.RGBA and others can use.