Inherit ONLY_ACTIVE_ARCH on iOS, just like OS X
Set LD_RUNPATH_SEARCH_PATHS per platform
Set a default PRODUCT_NAME for frameworks

Helps when the target name is too specific (e.g., ReactiveCocoa-iOS)
Inherit platform settings

These are notoriously fragile, so just rely upon Xcode’s defaults.
Merge pull request #29 from jspahrsummers/more-swift-fixes

More Swift/Xcode 6.1 fixes
Restrict OS X builds to x86_64o

See https://github.com/github/Nimble/pull/1 for context.
Merge pull request #30 from jspahrsummers/restrict-mac-to-64-bit

Restrict OS X builds to x86_64 bit
Remove USER_HEADER_SEARCH_PATHS default

This can cause huge argument lists, potentially even resulting in a
build failure. It seems more appropriate per-project on the occasion
that it’s even needed.
Merge pull request #31 from jspahrsummers/remove-user-search-paths

Remove USER_HEADER_SEARCH_PATHS default
Merge remote-tracking branch 'upstream/master'