Switch MathProgBase for MathOptInterface.jl

[matbesancon]

As recommended by the JuliaOpt org, MathProgBase is going to be changed for MathOptInterface, we're going to do it once many solvers have switched

[rschwarz]

I don't think there is a simple linprog anymore in MathOptInterface. Maybe it makes sense to switch to JuMP instead?

[matbesancon]

indeed why not, I'm not sure this is still the right time, MPB is still fine for the use cases of flow algorithms for the moment, users might have JuMP 0.18 for callbacks and other stuff

[mlubin]

JuMP provides a simpler interface than MathOptInterface if all you want to do is the equivalent of linprog. I would recommend starting to think about the switch. MathProgBase is being maintained on a minimal-effort basis at this point (i.e., if something broken requires more than minimal effort to fix, we probably won't do it).

[matbesancon]

yes I agree, this will also avoid the whole gymnastic of flattening the flow matrix into an array

[matbesancon]

@JuliaRegistrator register()

[JuliaRegistrator]

Registration pull request created: JuliaRegistries/General/9977

After the above pull request is merged, it is recommended that a tag is created on this repository for the registered package version.

This will be done automatically if Julia TagBot is installed, or can be done manually through the github interface, or via:

git tag -a v0.4.0 -m "<description of version>" 838078feb23b578ea739ad27c5d3a51e0feac233
git push origin v0.4.0