Minor fixes to gulpfile
Minor fixes to gulpfile

Adirelle/typescreeps,bryanbecker/screeps-typescript-starter,bryanbecker/screeps-typescript-starter,boriswintein/Empire,Adirelle/typescreeps,tinnvec/aints,Sean-Brown/screeps-typescript-starter,KeithHanson/screeps-typescript,KeithHanson/screeps-typescript,Sean-Brown/screeps-typescript-starter,tinnvec/aints