Update de.danoeh.antennapod.txt
Build command should look like ./gradlew clean assembleFreeRelease -PfreeBuild
See https://github.com/AntennaPod/AntennaPod/pull/2002 (Github had a glitch: It says closed, but the PR was merged)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Build command should look like ./gradlew clean assembleFreeRelease -PfreeBuild
See https://github.com/AntennaPod/AntennaPod/pull/2002 (Github had a glitch: It says closed, but the PR was merged)