[Integrated] RFR: 340: Infer master for repos in the same org for merge style PRs

[Robin Westberg]

Changeset: 32bba611
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2020-03-31 09:42:18 +0000
URL:       https://git.openjdk.java.net/skara/commit/32bba611

340: Infer master for repos in the same org for merge style PRs

Reviewed-by: ehelin

! bots/pr/src/main/java/org/openjdk/skara/bots/pr/CheckRun.java
! bots/pr/src/main/java/org/openjdk/skara/bots/pr/PullRequestInstance.java
! bots/pr/src/test/java/org/openjdk/skara/bots/pr/MergeTests.java