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
Oops, missed a spot
Merge pull request #715 from keyvan-m-sadeghi/master

Interval Algebra - Composition - Done
Bug fix for bug #721

std::hash just won't hash most things.
Minor MOSES cleanup
Remove old crud
Provide some plausible default module search paths.

This is for bug #720
Add more default search paths

Again this is forbug #720
Get rid of hard-coded search paths
remove more hard-coded paths inthe tests
remove another hard-coded path
Remove more hard-coded paths
Merge pull request #723 from linas/path

bug fixes for #720
Merge pull request #724 from linas/m2

Minor MOSES cleanup
Move logger tools under scripts/util
Have logger operator<< support any input type