very minor 0.7 fixes

[mlubin]

I stopped for the evening after getting to https://docs.julialang.org/en/latest/manual/interfaces/#man-interfaces-broadcasting-1. We have to implement this new broadcasting interface for JuMPArray.

[codecov]

Codecov Report

Merging #1346 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master    #1346   +/-   ##
=======================================
  Coverage   89.31%   89.31%           
=======================================
  Files          24       24           
  Lines        3387     3387           
=======================================
  Hits         3025     3025           
  Misses        362      362

Impacted Files	Coverage Δ
src/containers.jl	92.1% <100%> (ø)	⬆️
src/operators.jl	96.7% <100%> (ø)	⬆️

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[blegat]

@mlubin What's the status of JuliaArrays/AxisArrays.jl#84 ? Would it be easier to use AxisArrays ? Of course, it might take too much time if we want broadcasting to work on JuMPArray for JuMP-dev

[mlubin]

I'm not aware of any actual progress on JuliaArrays/AxisArrays.jl#84. However, JuliaArrays/AxisArrays.jl#131 might be useful as an example for implementing the broadcast interface.