v1.4.0

Gurobi v1.4.0

Diff since v1.3.1

Merged pull requests:

• Fix repeated word in README (#577) (@odow)
• Fix setting names that are too long (#580) (@odow)
• Add support for MOI.SolutionLimit (#581) (@odow)
• Add v12 interface (#582) (@torressa)
• Fix callback attributes in MOI.ListOfModelAttributesSet (#584) (@odow)
• Prep for v1.4.0 (#585) (@odow)

Closed issues:

• Gurobi Error 10003: Name too long (#576)
• Gurobi.jl doesn't support MOI.set(model, MOI.SolutionLimit(), nr_solutions) (#578)
• ListOfModelAttributesSet does not include callbacks (#579)
• Gurobi.jl indicates a wrong version in the logfile (#583)