Merge branch 'single-connection' into 'master'

Share one connection

See merge request card10/companion-app-android!19
1 job for master in 2 minutes and 36 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Build
failed publish #5393

00:02:36

 
Name Stage Failure
failed
publish Build
Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/5.1.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD SUCCESSFUL in 1m 18s
27 actionable tasks: 27 executed
$ fdroid nightly -v
ERROR: DEBUG_KEYSTORE is not set or the value is incomplete
ERROR: Job failed: exit code 1