added autodection of Rasmussen's minimize
fixed interface change in optimization.py
Merge branch 'master' of github.com:SheffieldML/GPy
Merge branch 'master' of github.com:SheffieldML/GPy
removed unused posix import
removed ticks and checkmarks from checkgrad() output, coloring param name instead
pretty printing of gradchecks
Merge branch 'master' of github.com:SheffieldML/GPy into debug