New release: Tcases 2.1.2

[Kerry Kimbrough]

Minor improvements, including some documentation touch-ups and some refactoring using functional expressions to simplify and clarify the code. For download instructions, click here.

The most extensive change: reworking all tests using Hamcrest matchers to clarify all assertions. This became doable after the recent release of hamcrest-composites, which provides new matchers for comparing complex Java objects with better testability.