removed psidispatcher.py. its code is long in spockplugin.py and not used otherwise.
refactored projection to define image plane by width and height rather than visual angles because floating points.
introduces a fovea patch which feeds straight to learners.
Merge pull request #59 from joschabach/refactoring-projection

Refactored the projection code
fixes activation overwrite.
Removing bandpass from sur channel in pipes
Merge remote-tracking branch 'joscha/master' into motivation_agent

Conflicts:
	micropsi_core/world/minecraft/minecraft_graph_locomotion.py