v0.30.1

AbstractAlgebra v0.30.1

Diff since v0.30.0

Merged pull requests:

• Simplify setindex! (#1347) (@LilithHafner)
• Fix ResidueRing / ResidueField deprecation message (#1348) (@fingolfin)
• Untangle generic ideal constructors (#1349) (@thofma)
• Fixes for printing (#1350) (@thofma)
• Add evaluate(E::Expr, vars::Dict) for evaluating arbitrary expressions (#1351) (@thofma)
• provide infrastructure to do the name printing (#1352) (@fieker)
• Fix missing dedentation (#1353) (@thofma)