Fixed issues address in comment.

Removed authors from header which will get it's own file.
Add an authors file.

Added @akoumjian, @alexvh, @plueschopath, @bruce-one, @cvrebert, @deployboy, @terminalmage, @geoffgarside, @jeffh, @ixela, @mguegan, @nevins-b, @aboe76, @s0undt3ch, @visualphoenix, @rca, @tateeskew, @thatch45, @kozhukalov and @whitmo to the authors file.