Remove framework headers when copying them to the application.
This feature was added in Xcode 6, but isn't present in the UI. Apple says you need to remove the framework being copied, then add it again. I just added the needed text directly in the Xcode project.
Also removed the unused (and unneeded) template icon in the Boxer project itself.
Merge pull request #49 from MaddTheSane/xcodeMaintenance

Xcode Maintenance