Sandstone-slurm-assist

Changelist:
* Improved error reporting
* Improved file structure
* Improved workflow for loading, submitting, and resubmitting jobs.

A full list of changes can be found in PR 39.

Summary:
* Updated ui-bootstrap to v2.5.x

Full changelist in PR 36

Re-releasing for Zenodo DOI badge

Changelog:
* Added support for new filesystem API
* Compatible with Sandstone IDE v1.0.x

This release fixes some API bugs for better compatibility with Sandstone IDE v0.12.9.

Release Summary:
- Many, many bugfixes
- Better test coverage
- Filetree select for filepath fields
- UI fixes
- More reliable script load/save