Add julia 0.5 to Travis build #51
Description
julia 0.5 is not a Travis build
https://github.com/JuliaDB/PostgreSQL.jl/blob/master/.travis.yml#L8
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julia 0.5 is not a Travis build
https://github.com/JuliaDB/PostgreSQL.jl/blob/master/.travis.yml#L8