v4.4.0

Integrals v4.4.0

Diff since v4.3.0

Merged pull requests:

• Refactor infinity substitution (#231) (@lxvm)
• pass the algorithm to the solution (#235) (@lxvm)
• Error message for unloaded extensions (#236) (@lxvm)
• update solver documentation (#237) (@lxvm)
• [skip ci] update downgrade CI repo (#238) (@ArnoStrouwen)
• ForwardDiff directly on all non-C solvers (#239) (@lxvm)
• reapply formatting (#240) (@ArnoStrouwen)

Closed issues:

• Integrals with lb > ub (#141)
• Unhelpful error message when not importing the correct packages (#232)
• nout > 1 for QuadGK (#233)
• Use alg in build_solution rather than constructing a new algorithm (#234)