0.56.1: Two Bug Fixes

This is a bug-fix release with a couple of important fixes.

• common/maps: Do not return error on params dot access on incompatible types e393c629 @bep #6121
• resources: Fix image Width/Height regression 93d02aab @bep #6120
• modules: Set GO111MODULE=on e5fe3789 @bep #6114