Gemfile Prawn v1.0.0 #36
controllers: `system` Prawn v1.0.0 #36
assets: css, small fix
update CHANGELOG
bump version v0.3.1
Merge branch 'hotfix/v0.3.1', fix #36
Merge tag 'v0.3.1' into develop

Hotfix v0.3.1

Conflicts:
	CHANGELOG.md
	lib/version.rb