[OPR-118]: Project tweaks.
[OPR-118]: Project tweaks.

When run locally, iOS tests ~ 64% of its code, OS X tests ~ 75% of it's code (it has less code).

ProcedureKit/ProcedureKit,blg-andreasbraun/Operations,ProcedureKit/ProcedureKit,danthorpe/Operations,danthorpe/Operations,ProcedureKit/ProcedureKit,danthorpe/Operations,cezarywojcik/Operations,cezarywojcik/Operations,blg-andreasbraun/ProcedureKit,blg-andreasbraun/ProcedureKit,blg-andreasbraun/Operations,blg-andreasbraun/ProcedureKit,cezarywojcik/Operations,blg-andreasbraun/Operations