Cleaned up Performance evaluation, removing files from Examples.Number and putting them in Performance. Also allows several other models, and these required some edits to model files
Merge pull request #7 from jthurst3/master

Add chi-square test, rewrite FunctionNode.__eq__
Modifications to allow Performance eval
Merge branch 'master' of https://github.com/piantado/LOTlib
fixed small bug in CombinatoryLogic
fixed small bug in CombinatoryLogic
Fixed bug in FunctionNode.__eq__ -- must check that args are FunctionNodes
other small fixes to __eq__
New plotting scripts for Performance; related tweaks
Fixed abs(temp) in ParticleSwarm
GrammarTest is now working, delete newlines at end of some files
update documentation files, create tutorial page with installation instructions
update tutorial
Created the testing grammar files
Created the testing grammar files
Merge branch 'master' of https://github.com/jthurst3/LOTlib
update tutorial a little
fixes to FunctionNodeDemo; updates to Proposals
Merge branch 'master' of https://github.com/piantado/LOTlib
restore Proposals.py