Pedestrian update

now uses our random for choosing cell to move to
increments dynamic field of previously occupied Cell
Merge branch 'master' of https://github.com/cisprocess/skk-cs4230-project-1

Conflicts:
	bin/cs4230/pedestrian/math/LinCogRandom.class
	bin/cs4230/pedestrian/objects/Cell.class
	bin/cs4230/pedestrian/objects/Pedestrian.class