Allow dicts in `for_each` with keys used in rule strings
0.6.2
Fixed 3 (crash on `--upload` when a user had no existing filters)
0.6.1
Fixed a bug that broke `--prune` as a standalone command.
0.6
* Added `--prune-labels` action to remove unused labels. This action also supports `--only-matching REGEX` to limit the pruning behavior and `--ignore-errors` for when Google's API times out or returns a 404.
0.5.1
* Added `--dry-run` flag for the cautious souls out there
0.4
* Added direct interaction with Gmail API (`--upload`, `--prune`, and `--sync`) * Added support for Travis-CI