v0.3.0

ConstraintCommons v0.3.0

Diff since v0.2.3

Breaking change: \delta_extrema does not support splatting anymore

Merged pull requests:

• Update documentation for JuliaConstraints website (#37) (@Azzaare)
• Update documentation for JuliaConstraints website (#38) (@Azzaare)
• Update julia to v11 (#39) (@Azzaare)
• Update julia to v11 (#39) (no release) (#40) (@Azzaare)
• Fix run-time dispatch in extrema.jl (#41) (@Azzaare)
• New release (#42) (@Azzaare)