ReplicatorProcessor now uses the PositionIndexer from the provided world
Changed EntityFactory to make trees with the SelfReplicable Component
Merge branch 'master' of github.com:ZimonD/ContextCG7
Changed method for replicating Entities
Changed and fixed ReplicatingProcessor class

-Fixed replicatableAllowed() method to correctly determine when it is allowed
to place a new Replicatable Entity;
-Changed replicate() method to correctly use the replicateChance field
instead of a parameter;
-Fixed replicate() method to use the correct probability that has been
supplied, instead of the inverse;
-Replaced an Exception with an assertion and added another assertion for
additional checking.
Added makeEmptyMap() to EntityFactory
Added stub for ReplicatingProcessorTest class
Added test to ReplicatingProcessor

It tests whether the horse pattern is followed.
Merge branch 'master' of github.com:ZimonD/ContextCG7