Fixes architectures settings in Foundation project
Fixes architectures settings in Foundation project

Provides better support for projects with non-standard build configurations when archived from xcodebuild

gudatcomputers/PivotalCoreKit,joemasilotti/PivotalCoreKit,jfuchs/PivotalCoreKit,jfuchs/PivotalCoreKit,idoru/PivotalCoreKit,idoru/PivotalCoreKit,mjstallard/PivotalCoreKit,pivotaltracker/PivotalCoreKit,pivotal/PivotalCoreKit,briancroom/PivotalCoreKit,joemasilotti/PivotalCoreKit,gudatcomputers/PivotalCoreKit