fixing normalization of signal
taking command line arguments for the filename $  octave stest.m  cur_1369971678529.csv
Fixed 'reverb', and added disables around some other effects
store save files in data folder
Smooth interpolation between mouse moves (this didn't get checked in last commit?)
messing around with parameters, each of these needs an easier to turn knob, or another oscillating/random/sawtooth/etc. source to change it, which really leads back to the mod-synth style software approach but I don't want to re-invent that wheel just yet
trying a reverb filter off a web search, sounds interesting but not great