All TypeScript files have been updated to pass the new eslint-based linting checks. eslint compatible disabling comments have also been added in place of the previous tslint comments.
New rules to deal with templates using a .template extension. Apply the template only
to those files, then remove the .template suffix.
Also added a new rename() rule that takes a matcher and a renamer. Nothing big there.
Also added a new composeFileOperator() that compose operators one after the other.
Like the interpolation and the pipe character. The default behaviour is kept.
We will need to use those to work around some limiations of the google3 file system which
does not accept "@".
