v3.10.1

Full Changelog: v3.10.0...v3.10.1

v3.9.1

• Fix issue with overriding default usable defined with a block, when mounting with an options hash (#16)

v3.9.0

• Add Usables#include? to check whether the config has a requested key
• Fix bug when calling an unknown attribute on a frozen usable results in an exception (e.g. "can't modify frozen OpenStruct")