v0.12.1

v0.12.1 (2019-08-06)

Diff since v0.12.0

Closed issues:

• Closures for @Mutate are broken (#242)

Merged pull requests:

• Fix DataFrame deprecation warnings (#274) (davidanthoff)
• Fix escaping issue with @Mutate (#273) (davidanthoff)
• Fix doctests (#268) (davidanthoff)
• Release 0.12.0 (#267) (davidanthoff)