clean up gitignore
clean up gitignore

breznak/NAB,metaml/NAB,orzinal/test,MauricioRoman/NAB,kimhungGCZ/combinedAL,kimhungGCZ/combinedAL,numenta/NAB,numenta/NAB,rhyolight/NAB,rhyolight/NAB,breznak/NAB,BoltzmannBrain/NAB,subutai/NAB,numenta/NAB,subutai/NAB,kimhungGCZ/combinedAL,numenta/NAB,jonathanstrong/NAB,scottpurdy/NAB,scottpurdy/NAB,scottpurdy/NAB,orzinal/test,metaml/NAB,subutai/NAB,BoltzmannBrain/NAB,jonathanstrong/NAB,jonathanstrong/NAB,metaml/NAB,MauricioRoman/NAB,MauricioRoman/NAB,breznak/NAB,rhyolight/NAB