[WIP] Acceptance-driven external contracts
Add Utils#inject (collections)
Introduce a World in TypeFactory and allow qualified names.
Let TypeFactory take a world extension as input.
Pass options to the parser and add support for world.
Add support for external contracts.
Improve cucumber steps a bit.
Typo
expect -> should
Spacing
Add Time to TestSystem.
Clean DateTime.iso8601 constract
Merge pull request #5 from llambeau/contracts

TestSystem.Date and Time through support for external contracts