Initial commit.

Basic interface code.
Added wave gradient stuff to play with.
Added pure data script.

Seems to set up ok but doesn't provide access to data (pausing problem?)
Added Processing sketch with serial RX and corresponding Python script.

Because literally nothing else works. Lucky linux can do serial through pts.
Added basic reactive visuals, proper serial interface.
Merge branch 'master' of github.com:talexand/brainvis

Merged in GPLv3 license file from github repo.