tomato pre-release 0.2rc1

What's Changed

• Proper documentation by @PeterKraus in #43
• Better error messages in ketchup.submit by @PeterKraus in #45
• ketchup.cancel: Implement new cancel mechanism. by @PeterKraus in #46
• Fix cancel & sort submit by @PeterKraus in #47

Full Changelog: 0.2a2...0.2rc1