Rebased the scl-utils:
    
    - Correct the %_sharedstatedir macro
    - Don't install /%{_lib} when not necessary
    - Add LICENSE file
    - Add scl_source script
    - Don't change directory in %scl_install
    - Don't generate provides from sonames in the SCL root
    - Add prefix to virtual provides of SCL packages
    - Implement "--" as a command separator
    - Removed binary file scl from git tracking
    - Fixed typo
    - Added example wrapper script.