Updated README using color values greater than 1.0f. fixes #10

Updated README colorWithRed:... using values greater than 1.0f. fixes #10
Merge pull request #22 from Ashton-W/patch-1

Updated README using color values greater than 1.0f. fixes #10
Added info about interface idiom branching.
check if values are different before setting
Merge branch 'master' of https://github.com/robertwijas/UISS