Re-merge into working.
Creating examples dir
Merge branch 'working' of https://github.com/okennedy/worldtree
converting gitignore to unix line endngs
Merging in latest updates
Merging in latest updates
Merge branch 'gurupras@buffalo.edu' of https://github.com/okennedy/worldtree
A few test cases
Merge branch 'working' of https://github.com/okennedy/worldtree
Updated definitions
Merge branch 'working' of github.com:okennedy/worldtree
Merge remote-tracking branch 'okennedy/master' into gurupras@buffalo.edu