Bind arrows/next-page/prev-page/end by default.

  This closes #78.
  Attempt to correctly decode MIME header-fields.

  This appears to pass my test-cases.  Perhaps more work in the
 future.

  Closes #66.
  Removed TAB characters.

  Run `make style` to run the style-checker which would have caught
 this pre-commit.
  new primitive; alert();

  Like "msg", but requires active dismisal.

  This updates #77