make targets for examples depend on library target.  Generate library named libusb-1.0.0.dylib not libusbx.dylib.  Added several xcconfig files to make source control and documentation easier.  Reorganised a few files' positions within the project.  Disable strict aliasing since libusbx breaks strict aliasing rules anyway. Set project format as 3.1-compatible.

Conflicts:
	Xcode/libusbx.xcodeproj/project.pbxproj
8 files changed