* Refactoring applied mostly because we need to satisfy the new state
  of GenericProcessor after refactoring;
* Also there were a lot of stylystic fixes applied, some minor
  improvements using C++11.

0MQ is included, but not linked (unless you define it in
NetworkEvents.h).
Redrawing events are not called for some reason.

SpikeDetector used the channel count as eventType on the event channel list, which was used by SpikeDisplayNode to draw the appropiate plot. However, eventType should be used to differentiate different event types, as TTL vs. SPIKE. As result, SpikeDisplayNode tried to plot TTL event channels as 3 electrode plots.
Fixed by adding an offset (SPIKE_BASE_CODE=100) to the channel count at eventType to avoid said collision. However, we perhaps should try to find a more elegant solution.