Created attachment 316742 [details] [review]
GSettings backend patch

Attached is a patch that implements gsettings support for Orca as a new backend.

Some notes:
* The patch also enables the GSettings backend by default
* No code has been written to migrate user settings from json to gsettings.
* I have attempted to make the GSettings backend 100% compatible with how the JSON backend works, such that Orca should still function just as it does with the JSON backend.

One small bug I've found is voice settings reverting to defaults when saving app settings, although this is not reflected in what is saved, only what is heard. This bug has only arisen since I refactored the code such that all save and load calls use a similar code path, and was not present in my earlier, unoptimized, massively duplicated code. I hope to address this cosmetic issue next week.