v0.3.1

DualDecomposition v0.3.1

Diff since v0.3.0

Closed issues:

• Allow to set objective bound to the Lagrangian master (#37)
• Default option for primal heuristics (#39)

Merged pull requests:

• Allowing the Lagrangian master objective limit (#38) (@kibaekkim)
• Refactoring (#40) (@kibaekkim)