- Split training and validating screen in two different activities.
- Reworked how features are added to the feature vector (now we dont
  need to manually calculate the vector size.)
- Temporarily removed total time from feature vector.
- Fixed a bug with ConcurrentModification in SignPreProcess.
- Timing out no longer triggers a feature analysis (this was causing
an annoying bug).
- Points List in drawView are now cleared after every new input.