Import Jack coverage release 1.0-b4 Plugin version: 420400 8e3b9010fd5bbf8a2c93dcea40f8eec4c814fcec Also removes the jack-coverage-plugin-STABLE.jar since we only support one version of the plugin. Bugs fixed since 1.0-b3 Bug: 32404357 Bug: 33947199 Bug: 27588651 Test: manual testing Change-Id: I3babe3d2256bae4e29fcc2a354f518ceda965529