Is Compat package falling short of the expectation for making code work in both v0.6 and v0.7? Am I supposed to throw in another @static if
block and import Statistics for v0.7?
$ julia
julia> VERSION
v"0.6.3"
julia> using Compat.Statistics
julia> mean
WARNING: both Statistics and Base export "mean"; uses of it in module Main must be qualified
ERROR: UndefVarError: mean not defined