Support Java 8 language features

See merge request !620

Log network usage at shutdown

See merge request !616

# Conflicts:
#   briar-android/build.gradle
#   briar-android/src/test/java/org/briarproject/briar/android/login/SetupActivityTest.java

Setup Wizard that asks for Doze Mode exception

Closes #1085 and #1018

See merge request !603

Keep checking if we are whitelisted and request it if not

Simply bramble-androids's build.gradle

See merge request !622

Signed-off-by: goapunk <noobie@goapunks.net>

Add some simple indexes to the DB

See merge request !618

Delete old transport property updates

Closes #482

See merge request !617

Some of this code is only needed for backward compatibility - it can be removed when we break compatibility for 1.0.

Change wake lock tag

Closes #992 and #1087

See merge request !612

Signed-off-by: goapunk <noobie@goapunks.net>

Remove unused location permission

See merge request !611

Don't use a custom widget to separate preference categories

Closes #1045

See merge request !609

Upgrade Gradle plugin and build tools

See merge request !610