- build script strips `require` statements
- finally every version is pinned (see #740 h/t @the-spyke)
- removed colloquialisms in README

- HTML output new preamble, <table> should not be in header/footer
- XLS Built-In defined names translated to XLSX _xlnm form
- README: streaming read strategies
- If approximation error is sufficiently small, assume MDW is 6
- TS rename Utils type to XLSX$Utils (see #618)

- 'html' bookType write format
- basic HTML entity encoding (fixes #629 h/t @xkr47)
- HTML string and table merge cell fixes
- doc notes on nodejs streaming