* stable-3.3:
Add shadow-selection-polyfill
Update jetty version to 9.4.35.v20201120
Add shadow-selection-polyfill
Update codemirror-minified to 5.59.1
AliasConfig: Pass recursive=true into getNames() JGit methods
Update git submodules
Update git submodules
Update git submodules
Revert "Remove PerThreadCache"
Revert "Remove unused CurrentUser#cacheKey method"
docs: attention set: 3.3 is no longer upcoming
Revert "Upgrade soy to 2020-08-24"
Due to update of @typescript-eslint/eslint-plugin package, the rule to
switch off @ts-ignore comment warning was renamed from ban-ts-ignore to
ban-ts-comment.
Change-Id: I280855c2e70bc58fa82568f4f37e2d347ddd851c