Merge branch 'stable-2.15' into stable-2.16 * stable-2.15: Migrate `tools/bazel.rc` to `.bazelrc` Upgrade bazlets to latest stable-2.15 to build with 2.15.7 API Upgrade bazlets to latest stable-2.15 to build with 2.15.6 API Align Eclipse compiler settings with core Gerrit's WORKSPACE: Make commented out lines spaces indent consistent bazlets: Replace native.git_repository with skylark rule Upgrade bazlets to latest stable-2.15 to build with 2.15.5 API Update bazlets to latest stable-2.15 to build with 2.15.4 API Replace Guava functional constructs with Java native ones Remove final qualifiers Fix broken build status badge link Allow to protect specific projects against deletion Add tests for protected projects Change-Id: I2aa88b659c17cf643e2914989e1331f67718f595