Still some dangling references to p hanging around

[DOSull]

There seem to be a few places where method signatures expect to receive p which I think is a reference to a processing canvas no longer in use? These make refactoring the code per #5 tricky (and also should be removed as a matter of principle anyway...)

[nicklally]

you are correct about 'p' being a remnant from earlier, when we were using p5's instance mode. they should be able to be removed without a problem (i thought i had, but not surprising that i missed a couple). feel free to delete them when you see them!

[nicklally]

okay, i think i've deleted all p references in function and methods, so i am closing this issue. thanks for pointing this out