Purge update and FE update

Improvements / Enhancements
DOP-2294: handle page data .json purges
DOP-2366: Add UnifiedFooter to Snooty Frontend

v0.9.21: The One That Was Very Quizzical (2021-08-05)

Bumps snooty-parser to v.0.11.2 and snooty to v0.11.6

Improvements / Enhancements

• DOP-2290: Quiz Widget is now ready to use
• DOP-2338: Adds consistent nav POC behind feature flag
• Added java-docs-4.3 extlink to parser

Tech Debt / Bug Fixes

• Pruned unused guides code from Snooty front-end

v0.9.20 front-end bump

v0.11.4 snooty frontend

v.0.9.19 Parser and Frontend version bumps

v0.11.3 snooty frontend
v0.11.0 snooty parser

v0.9.18 snooty version bump

Update Dockerfile

v0.9.17 snooty version bump

https://docs.google.com/document/d/1kFOPZRM2jPvd7ABzOrSz7zEJ7sxhKtu4fx_jQP2cNnE/edit#

v0.9.16 snooty version bump

https://docs.google.com/document/d/1DzGwLo5od8ovDG67NmPIxYJFcGkyQQ1wGcliaPZkAGI/edit#heading=h.vm09gpjyeeny

v0.9.15 Parser patch version bump

Patch bump for parser patch release - fixing missing directives.

v0.9.14 Snooty version bump

Snooty Release Checklist for 2021-06-24
https://docs.google.com/document/d/1RVwXE0qe4xYMGyNX6nXIo2gI97zwCpAgBnFEeXzbM6U/edit#

v0.9.13 Push less staging

DOP-1258 Make pushless staging available for NextGen