Kaggle

Release date: 12/5/18
* Allow custom ca_cert files
* Support uplodaing datasets with subfolders
* Fix kaggle.json permissions warning

Release date: 10/19/18
* Update API to work with new competitions submissions backend. This change will force old API clients to update.
* Update error message when config file is not found.

Release date: 8/28/18
* Fix host

Release date: 8/28/18
* Make dataset version `-p` argument actually optinal
* Don't require the `resources` field when updating a dataset
* Don't automatically unzip datasets
* Add an unzip option for dataset downloads
* Add validation for kernel title and slug length
* Give a warning if kernel title does not resolve to the specified slug
* Show kernel version number after pushing
* Respect `code_file` value in kernel metadata when pulling kernels

Release date: 8/7/18
* Allow setting config values through environmental variables

Release date: 8/1/18
* Add error if dataset metadata repeats files