OSX build of ColorPicker

Per issue Monnoroch/ColorHighlighter#75, here is a pull request that includes a newly built x64 ColorPicker executable against Qt 5.3, built with clang 6.0 (600.0.38). Because I am using Xcode 6 for Yosemite, the executable was built with OSX 10.9.x and Darwin 13.x as a minimum requirement.