Fixes/Features we want:
* enh(javascript) Add support for jsdoc comments
* fix(python) if incorrectly identified as f-string
* enh(css) major CSS highlighting improvements
* [parser] fix merged HTML attribute quoting
* fix dropping characters if we choke on a bad regex
* (shell) Fix formatting when '/' is in a shell prompt
Updates to commit 5b9989dd6d12a830381345d7d2f7c82ed3ec8025
Change-Id: I348057d4d11667b7c89cad0945277abc2abb2830
84420b1d5a