… ppc support for now, may revisit.
…hecking to hasPrefix:@"3.1".
…e 3.1 version string).
…t off an NSTask to give Xmod.scpt a nonweird script execution environment.
…o generate single binary that works on Xcode 2.4 through 3.0 (targeting 10.4u SDK on ppc, 10.5 SDK on x86_64).
…the runloop via performSelector:withObject:afterDelay:0.0. The script was firing fine, but the model file wasn't actually there anymore (the script was executing after safe save had saved the model file to /some/tmp/dir and after it deleted the original, but before safe save moved the newly-saved file back to the original file's location). Also re-architected loading of XDesign plugin based on runtime Xcode version instead of the mere presence of files on-disk. This is preparation of Xcode 3 compatibility where the user can have Xcode 2.5 and 3 installed simultaneously.