CSV.jl 0.7 Release - The 1.0 "trial run"

I’m happy to announce a new 0.7 release of the CSV.jl package. This is the last anticipated release before an official 1.0 release, and can be considered a 1.0 “trial run”. Major changes include: Deprecations CSV.read(file; kw...) has been deprecated in favor of DataFrame!(CSV.File(file; kw...))...