Interface:
* Graph + and - buttons are hiding part of the axis. Move them on the side in google-maps style.
* Add the ability to add thresholding on the plot
* Make the axis labels more readable
* Add configurations settings
* Menu - add trace...
* Color coding the channels
Code design:
* Refactor plotting to use (x, y) series, not just (y) series over constant interval
* Figure out how to jump between activities