Import of SHAY/Class-Singleton-1.5 from CPAN.

gitpan-cpan-distribution: Class-Singleton
gitpan-cpan-version:      1.5
gitpan-cpan-path:         SHAY/Class-Singleton-1.5.tar.gz
gitpan-cpan-author:       SHAY
gitpan-cpan-maturity:     released