make some small changes to package deps.

Former-commit-id: 1d117be [formerly 1d117be [formerly 42c9876]]
Former-commit-id: 5a7d9c6bc507bd1430bbf350a4b4ac39e7a3b4d3
Former-commit-id: 03cc387

Author: Johan Dahlin

README.md

@@ -8,7 +8,7 @@ The papers are available as a preprint from < http://arxiv.org/pdf/1511.01707 >
 
 Requirements
 --------------
-The code is written and tested for R 3.2.2, Matlab R2014a and Python 2.7. 
+The code is written and tested for R 3.2.2, Matlab R2014a and Python 2.7 with some additional libraries/packages (see below).
 
 The implementation in R makes use of the packages Quandl and mvtnorm. They can be installed by the command "install.packages(c("mvtnorm","Quandl"))".