-------------------
- Add ability to filter hosts from specific commands. [Jose Diaz-
Gonzalez]
- Ensure we don't accidentally re-clone rsync exclusions. [Jose Diaz-
Gonzalez]
- Add gitignore. [Jose Diaz-Gonzalez]
- Strip empty lines from logging output. [Jose Diaz-Gonzalez]
- Fix issue where arbitrary commands are not run due to shadowing
`command` key. [Jose Diaz-Gonzalez]
- Fix issues with filtering nodes via the api. [Jose Diaz-Gonzalez]