Goosepaper

> Some major codebase reorganization, thanks to sterlingbaldwin. Thank you!!

- Bugfixes
- Fixed Twitter story provider; we're back in business!
- Improvements
- RSS stories are now downloaded in full (when available) — thanks again sterlingbaldwin!
- Specify your weather preferences in C/F units
- Added a Docker image! Generate your goosepapers in a box!

> This release converts Goosepaper to a Python module. You can now call it from the command-line with `goosepaper`. See `goosepaper --help` for more details.

- Improvements
- Use Goosepaper as a library, or use it as a command-line tool. Both work now! (11)
- Read a config file from disk in order to build a list of story providers, rather than having to hard-code it. (11)

> This is the last release of Goosepaper before it was converted into a Python module. If you are still using Goosepaper as a script, this is the version for you. Please update as soon as possible!

- Improvements
- Weather
- Optionally record the weather temperature in Celsius. Thanks kwillno! (10)
- RSS
- Don't break on RSS feeds that lack images. Thanks again, kwillno! (10)