Anaconda-cli

* Fix pip 8.1 issue with py27. 303
* Fix `anaconda copy` problem with labels. 304

* `notebook` subcommand is going to be deprecated. Showing deprecation warnings for now. 300
* `anaconda upload` can upload notebooks with thumbnails. 300
* `anaconda upload` can upload environments. 301
* Fix/netrc auth. 298
* Fix OpenSSL issue. 297
* Improve performance when dealing with tar files. 293 (brentp)
* `anaconda login` supports kerberos. 278
* Typos. 284 (barentsen) and 276
* Error when failing to delete data. 273
* Docs cleanup. 272

* Learned the `anaconda label` command and `--label` arguments to replace the `--channel` options and `anaconda channel` command (262)
* `anaconda auth --remove` learned the `--organization` argument to remove a token for an organization (260)
* `anaconda upload` can be told not to create packages automatically by setting the new `auto_register` configuration option to `no` (270)
* Learned to read an API token from the environment variable `ANACONDA_API_TOKEN` (269)
* Additional bug fixes (204 268 Anaconda-Server/docs.anaconda.org63)

* Produce warning about broken version of Requests with PyOpenSSL

* Fix issue with `anaconda download` when server uses file storage

* Fix issue with big packages 126