Uncommented FP.colorRGBAlpha function.
Added public general Data.read and Data.write functions.
Input.define now supports passing an Array or Vector.
Revert "Uncommented FP.colorRGBAlpha function."

This reverts commit 10e34df0e0bccd2a80aeb420c9c91268aabc2ce3.
Fix the unintentionally broken master branch.