More flexible build system: 0.2.17

No new features but the app now has a more flexible build system now that it's written in Fennel. No longer dependent on the make command.

This app is still in development, so expect bugs! To upgrade to a new version:

1. Export your data by tapping on the export button at the bottom of the app
2. Attach the new moments file
3. Tap the import button in the new app and import your old data