saugns v0.4.4c. Minor parsing bugfix. Refactoring.
Language changes:
* Nesting syntax.
- Fix parsing of num. expr. namespace for "Y" in `[X][Y]`;
for any "X" object params, "Y" sweep namespace was lost.
- Change undocumented generic `<...>` nesting, to `{...}`.
* Sweep syntax. Remove deprecated support for params in `{}`.
Rebased down modulator list `-` and concat, and sweep and list
unification, to v0.2.x (modified sgensys versions pre-saugns).
Logs kept while scripts in branch have one less syntax change.
Changes in naming and code style built up, working through the
versions. The new code is tidied similar to old rebasing work.
Outside the parser, refactoring and more cover some more code.