Update gemspec.
Update gemspec.

nTraum/reek,HParker/reek,troessner/reek,apuratepp/reek,weby/reek,skywinder/reek,troessner/reek,apuratepp/reek,tansaku/reek,skywinder/reek,HParker/reek,skywinder/reek,andyw8/reek,tansaku/reek,andyw8/reek,tansaku/reek,HParker/reek,nTraum/reek,chastell/reek,weby/reek,apuratepp/reek,weby/reek,andyw8/reek