Supported Release 3.2.1

Summary
This is a supported release

Bugfixes
- Fixed `is_integer`/`is_float`/`is_numeric` for checking the value of
  arithmatic expressions.

Known bugs
* No known bugs
Merge pull request #227 from hunner/add_support

Supported Release 3.2.1
Patch metadata
Merge pull request #228 from hunner/fix_metadata

Patch metadata