Add clojure.set dependency
Bump riddley
Copy riddley.walk

With intent to apply some patches that are not released yet
Handle def with docstring

https://github.com/ztellman/riddley/pull/11
Add test for oxbow.namespace.body
Do not fail if symbol doesn't resolve to Var
Don't macroexpand macros from other namespaces
Refactor function
Only return symbols with resolved ns
Ignore all qualified symbols

Including namespace and Java class names