add keyword arguments to var and std
Merge branch 'master' into dh/cov2
new covm and cov implementations
cov tested
use unscaled_cov as core function
simplify the interface of covm and cov
add new corm and cor methods
cor & corm tested
export covm and corm
optimized implementation of unscaled_covzm
Merge branch 'master' into dh/cov2
new API for function cov
new API for cor
mean keyword argument for var and std
minor adjustment of API for cov and cor
minor adjustment of API for cov
probably fix #5867. for some reason, debug info of libjulia-debug is broken for me right now, so this only works for libjulia-release
Merge remote-tracking branch 'origin/master'
assume libssp-0.dll is needed. fix #6153
Merge branch 'master' of https://github.com/JuliaLang/julia