fixed basic tests to work with new release
added ChimpGamma, modified ChimpBeta
created a ChimpGamma monkey
basic Bayesian linear regression demo
updated gitignore file
modified BasicTests and cleaned ChimpGamma
Moved setting of walk_var from ChimpGamma to ChimpleProgram
changed proposal for ChimpGamma
Merge pull request #1 from gamelanlabs/develop

Fixed BasicTests, added ChimpGamma, and created BayesLinearRegress demo.