writemime error

[cstjean]

On the current master (and tagged version), Julia 0.4.5, in IJulia

> using DataFrames
> DataFrame(x=[1,2], y=[3,4])

UndefVarError: displaysize not defined

 in writemime at /Users/cedric/.julia/v0.4/DataFrames/src/abstractdataframe/io.jl:181
 in sprint at iostream.jl:206
 in display_dict at /Users/cedric/.julia/v0.4/IJulia/src/execute_request.jl:38
 in execute_request at /Users/cedric/.julia/v0.4/IJulia/src/execute_request.jl:195
 in eventloop at /Users/cedric/.julia/v0.4/IJulia/src/IJulia.jl:138
 in anonymous at task.jl:447

Seems to come from https://github.com/JuliaLang/julia/pull/14580. Probably needs an @compat?