- refactor the project structure - provide *qe* example, a simple calculator
0.4
- Add ability to explicitly specify units (or model) in evaluated string.
0.3
- complete re-write, parser now implemented with ply rather than pyparsing. - all built-in constants and functions have been removed. - split *evaluate* into two: *evaluate* and *initialize*.
0.2
- ``rm_commas`` now converts semicolons to commas - support comments