[ANN] BiwaScheme 0.6.8

[yhara]

Released BiwaScheme 0.6.8 (mostly a bugfix release).

  * new: js-new can take JS constructor function (#97)

  * fix: `(eval 123)` raises error (#83)

  * fix: "XML Parsing Error" on Firefox (fix #88)

  * fix: error on i.html (#93)

  * fix: (Node.js) `biwas` freeze with `#(1 2)` (#21)

  * fix: (Node.js) `(read)` may conflict with `display` (#84)

  * fix: (Node.js) `load` and `js-load` find source file from the current directory (#89)

  * fix: (Node.js) file-exists?, delete-file, get-environment-variable did not work