Some linters do not work properly without those annotations.
This was done with a batch replace.
Also needed to turn off two lint rules, they will be re-enabled in the
followup change. This way the batch change can be clearly separated from
manual modifications.
Change-Id: I891ae09689520edaba5588c1f2206766db2d2b90
tslint has been deprecated so it's nice to switch to eslint.
Currently this uses a minimal eslint, to get things up and running.
node-sass requires C which does not work nicely on all platforms.
Change-Id: I3ca9adf2971475c009e541652b7637c18ad960f4
