Hmm... That worked, but it seems to have broken something else:
julia> Pkg.checkout("HypothesisTests")
INFO: Checking out HypothesisTests master...
INFO: Pulling HypothesisTests latest master...
INFO: Installing CurveFit v0.1.0
INFO: Recompiling stale cache file /home/daniel/.julia/lib/v0.4/HypothesisTests.ji for module HypothesisTests.
WARNING: Method definition call(Polynomials.Poly, Any) in module Polynomials at /home/daniel/.julia/v0.4/Polynomials/src/Polynomials.jl:302 overwritten in module CurveFit at /home/daniel/.julia/v0.4/CurveFit/src/linfit.jl:124
Now every time I start Julia I get that same warning. It looks like Polynomials and CurveFit don't like each other?
Daniel.