1.11

• Update to Gradle 5.6.3
• Source and build compatibility switched to Java 7
• Added common Patch interface (commit 08009be)
• Bumped msg-simple to 1.2 (was getting an older version via jackson-coreutils)
• Bumped jackson-databind to 2.9.9 (was getting an older version via jackson-coreutils), and fixed some deprecated use.
• Bumped jackson-coreutils to 1.11
• Bumped Guava to 28.1-android.
• Bumped mockito-core to 2.28.2
• Bumped assertj-core to 2.9.1
• Replaced OSGi plugin with biz.aQute.bnd.