Create pointops, an interactive objects interface experiment.
Renamed E3parser to C2parser
Got rid of assignment. Made unknown variables become env.*
Merge pull request #6 from weshoke/point-pair

Create pointops, an interactive objects interface experiment.
parsing positive and negative numbers
Merge branch 'master' of github.com:weshoke/versor.js
Fix drawing circles not centered at the origin.
C2 updates
added C3
added C3