Synbols

Bug fixes

* Solves Issue 32

Bug fixes

* Fix an issue that occurred when paths of files to run in the Synbols Runtime Environment (via `synbols file_path`) contained spaces: https://github.com/ElementAI/synbols/issues/30

This is the first stable release.

New features

* Font blacklisting (see https://github.com/ElementAI/synbols/tree/master/synbols/fonts/blacklist)
* Include Japanese and Hebrew locales (previously: wrong locale codes resulted in exclusion)
* Documentation and code cleanup

New features

* `synbols-jupyter` command to start `jupyter notebook` in the Synbols runtime environment.
* Example Jupyter notebook
* Developer feature: a custom docker image can be specified via the `SYNBOLS_DEV_IMAGE` environment variable. This is useful to develop with a local image (not pushed to DockerHub).

This is a first release of the Synbols dataset generator. This version includes:
* The `synbols-datasets` command to generate predefined datasets.
* The `synbols` command to run custom dataset generation code inside the Synbols runtime environment.