Tried to address factorie online trainer logging issues
Updated README
updated to scala 2.10.4 and worked on nlp object serialization using pickling.
currently attributes cannot be pickled
work towards better support of map data structures
spec for a nested sum passes
spec for a sum over a cartesian product passes
grid example
fixed naming of weights in grid
Update MPScheduler to include N2F messages. Should significantly speed up BP for factors of degree > 2
Fixed issue #81 - BP incorrect when there are multiple solutions
Added spec for this issue
(Fixed EdgeDirection Enumeration to prevent warning)
Merge remote-tracking branch 'remotes/origin/dev' into dev

Conflicts:
	wolfe-core/src/main/scala/ml/wolfe/BeliefPropagation.scala
updated readme
Support for bi-directional object graphs
1-n relations with order
improved object graph
Fixed issue #91 by only iterating on structures that haven't appeared further up in the loop.
remove println statement in table generator
MLN example works