Synchronization & onboarding improvements

Improvements for all users:

• It was possible in some specific cases to mess up the synchronization by
  moving around files & folders during the analysis phase. This is fixed now.
  Feel free to move everything around anytime :)
• In some cases, moving then immediately deleting a file was handled as 2
  distinct actions. The file is now directly detected as deleted.
• The Cozy address page shown during onboarding should now be clearer for people
  not familiar with URL.
• When disconnecting then reconnecting to your Cozy, you could eventually see
  your old files for a few seconds in the dashboard. The fix was published in
  an old minor release, but not properly integrated to the subsequent releases.
  This is fixed now.

Improvements for support team & developers:

• Support requests from the app are now sent to the usual support email.
• Code coverage is back

See known issues.

Happy syncing!