Regenerated gemspec for version 1.3.1

Regenerated gemspec for version 1.3.0

Regenerated gemspec for version 1.2.2

Merge branch 'master' of github.com:codegram/simple_currency

Regenerated gemspec for version 1.2.0

Regenerated gemspec for version 1.1.2

Regenerated gemspec for version 1.1.1

Regenerated gemspec for version 1.1.0

Regenerated gemspec for version 1.0.2

Version bump to 1.0.1