Initial work on Analytik support
Merge branch 'master' of https://github.com/NialG/Diabetik into Analytik

Conflicts:
	Diabetik.xcodeproj/project.pbxproj
	Diabetik/Diabetik-Info.plist
Merge branch 'master' of https://github.com/NialG/Diabetik into Analytik

Conflicts:
	Diabetik/Diabetik-Info.plist
Work towards the integration of Analytik as a sync service
Added temporary Analytik assets
Re-organised service-related classes and resources
Work on Analytik syncing
Merge branch 'master' of https://github.com/NialG/Diabetik into Analytik

Conflicts:
	Diabetik/Diabetik-Info.plist
Further work towards Analytik syncing
Added UAActivity entries to the Analytik sync payload
Merge branch 'master' of https://github.com/NialG/Diabetik into Analytik

Conflicts:
	Diabetik/Diabetik-Info.plist
	Diabetik/UAAppDelegate.m
JSON is now properly serialised
Changes to the staging server development option
Implemented automated Dropbox backups
Improved backup sync checking. Cleaned up photo management.
Made it possible to setup rule-based reminders that trigger based on tags
Updated licensing
Work on the new tag-based navigation system
Reworked the view controller message UI to use constraints and be more self-contained
Improved keyboard/field-entry interaction