Programmatically upload bokeh js/css to the container

This PR add a simple and isolated script to upload bokeh.[min].js[css] files to Rackspace.
This helps in the release process and BEP-2 has to be modified accordingly after merging.

ok, the only change we need to do, after deciding the structure, is modify the url we are pushing to... ie,
```
"https://storage101.dfw1.clouddrive.com/v1/$id/bokeh/[whatever]/bokeh.$tag.min.css";
```