v2.0.0-beta4 release of NClap

Assorted updates to better support nested commands and provide greater control over loops.

v2.0.0-beta3 release of NClap

Select fixes for non-Windows platforms, minor improvements to tests.

v2.0.0-beta2 release of NClap

Fix a few issues in previous beta.

v2.0.0-beta1 release of NClap

Large overhaul toward 2.0 (#16)

* Large assortment of changes, some of them breaking.

Major changes:
  Rename 'verb' -> 'command'
  Integrate commands between CLI parsing and REPL
  Upgrade packages, many code cleanup tweaks
  Various flexibility improvements to style
  Overhaul of usage output

* Rev version

* Fix typo in yml

v1.5.0-alpha release of NClap

Merge upstream changes

v1.4.1 release of NClap

Bump version to 1.4.1