Constructor of Array with DenseAxisArray

[blegat]

This was discussed in the JuliaLab meeting today. The current behavior of JuMP.DenseAxisArray is consistent with OffsetArray in the sense that similar converts it onto an Array but Array gives an error.
Making convert work would be too much as convert is called implicitly when in setindex! or when setting fields of structs.
However, @stevengj suggested that the Array constructor should be allowed to coercing the JuMP.DenseAxisArray into dropping its dimensions would be reasonable.
We might want to follow the development on OffsetArray and follow what's decided there.

[odow]

To clarify, you're proposing the following?

Base.Array(x::DenseAxisArray) = x.data

Or something else?

[blegat]

Yes exactly, also one for Array{N}