bump up ruby version to 2.1.2

refs #54
railsのバージョンを4.1.6に更新

fixes #54
update travisci setting

refs #54
Merge pull request #56 from shizm/upgrade_to_rails_4_1_6

Upgrade to rails 4 1 6
届書のモデルおよび、PDF作成機能を追加

refs #6
Merge branch 'generate_application_report' of github.com:shizm/claude into generate_application_report

Conflicts:
	Gemfile.lock