Add block function persuant to #88
Support include-only and include-with-only syntax pursuant to #129
Fixed range operation pursuant to #233
Merge pull request #234 from thomas-p-wilson/fix-range-same-limits

Fixed range operation pursuant to #233
Merge pull request #231 from thomas-p-wilson/feature-include-only

Support include-only and include-with-only syntax pursuant to #129
Merge pull request #229 from thomas-p-wilson/feature-block-function

Add block function persuant to #88