* stable-3.0: Update codemirror-editor Update git submodules Bazel: Fix plugin api javadoc generation Update git submodules Update git submodules Update git submodules Update git submodules ElasticContainer: Upgrade V6_8 to elasticsearch 6.8.7 Add new prolog fact to documentation Add prolog predicate to determine number of parents Change-Id: Ic8b28c079a74483242f9880839f6062ee02cabfa