自己依存を修正
Regenerate gemspec for version 1.4.1
Revert "Regenerate gemspec for version 1.4.1"

This reverts commit f13f8b5bf73e10acc6f302191a208a6766a0651f.
Version bump to 1.4.2
Version bump to 1.4.3
Version bump to 1.4.4
Version bump to 0.0.0
Gemfile修正
Version bump to 1.0.0
Version bump to 1.1.0
Version bump to 1.2.0
Version bump to 1.3.0
Version bump to 1.4.0
Version bump to 1.4.1
Version bump to 1.4.2
Version bump to 1.4.3
Version bump to 1.4.4
自己依存の修正