Tomodachi

- More improvements regarding hot-reloading of code that may have syntax errors, indentation errors or issues when the service is being initiated.

- Solves the issue where hot-loading into a state where the code errors due to syntax errors would crash the application, making the user need to manually restart the process.

- Fixes for failing tests on hot-reloading during test phase.

- Solves issue with Segmentation fault in Python 3.6 during hot-reload on Linux.

- Fixes type hinting issues with Python 3.5.1.

- Reworked watcher since it ended up using 90% CPU of the running core due to constant re-indexing (mstat) of every file every 0.5s. Full re-index will now only run every 10 seconds, since it's more rare that new files are added than existing files edited. Watcher for edited existing files will still run at the same intervals.
- Watched file types may now be specified via configuration via `options.watcher.watched_file_endings`.