DFS working, pending debugging...
woohoo DFS solved the composition problem
rail framework is mostly bug free, adding code to handle
strength value handling to RailwaySystem
Composition and decomposition fully functional
Merge branch 'master' of github.com:opencog/opencog
New unit tests for PLN, just 1 rule so far, but integrated in nosetests.
Merge pull request #717 from Alex-van-der-Peet/master

New unit tests for PLN, just 1 rule so far, but integrated in nosetests.
Reversed GeneralEvaluationToMemberRule name change, cleaned up SCM file and new unit test code.
Merge pull request #718 from Alex-van-der-Peet/master

Reversed GeneralEvaluationToMemberRule name change, cleaned up SCM file ...
Fix a void return ...
trivial whitespace fix
Misc minor whitespace and typos
plan extension for negative values
dyanamic fs is no longer experimental.

It works amazingly well, actually.
Make the namespace usage clear.
Whitespace and documentation fixes.
Push some dead code out of the way.
Minor cleanup
Move code out of the header file
Move more code out of heaer file