changed manifest from docs to doc
Bug fix in the confusion matrix
began to merege the SVIGP code into GPy.

Example is implemented, but the step length is a bit crazy!
Merge branch 'master' of github.com:SheffieldML/GPy
New version number
Merge branch 'master' of github.com:SheffieldML/GPy
ensure_default_constraints is on by default
Merge branch 'master' of github.com:SheffieldML/GPy
merging by hand...