v0.13.0

NLPModelsJuMP v0.13.0

Diff since v0.12.7

Merged pull requests:

• Support quadratic constraints (#181) (@amontoison)

Closed issues:

• Add support for quadratic constraints (#50)
• Improve hess_coord! when y is not provided (#149)
• Unsupported features should error, not warn (#150)