[fluxus] commits

[dave]

* glsl shader init fix

* a repl fix thanks to pix

* (build-blobby blobcount subdivisionsvec sizevec)
returns a blobby primitive which is a type of implicit surface,
generated from "blobs" which you can move around, scale and add colour
to. like the particle primitive, it's controlled via pdata:

"p" vector - position of blobs
"s" float - strength
"c" colour - colour of blobs 

like the poly primitive, you need to use (hint-vertcols) to use the
colour pdata rather than the current colour state.

see examples/27-blobbies.scm for an example

docs to follow

cheers,

dave