Initial commit
Basic working version
Added test script
Work on R tests
Ready for WIP PR
Renamed generate... to avoid triggering testing
Minor changes
Major rewrite to provide REML and ML.  Still WIP, many pieces missing.
Implemented analytic Hessian
Added summary method
Added summary method
Trying to resolve travis failure
Fixed error in full likelihood
Switched initial optimizer from EM to steepest descent
Switch optimizer to fmin_cg
Diagnosing travis failure
Switched to Psi = LL' parameterization
Add numeric derivative tests
Changed signature for full likelihood calculation
Added int conversion for py3 compatability