Regenerate gemspec for version 1.0.22

Regenerate gemspec for version 1.0.21

Regenerate gemspec for version 1.0.20

Regenerate gemspec for version 1.0.19

Regenerate gemspec for version 1.0.18

Regenerate gemspec for version 1.0.17

Regenerate gemspec for version 1.0.16

Version bump to 1.0.15

Regenerate gemspec for version 1.0.14

Regenerate gemspec for version 1.0.13