* Add missing dependency "compression"

* Remove "compression" dependency from next

* Add failing test for dynamic routing/webpack HMR bug

* Remove un-used args from onDemandEntryHandler

* update to latest webpack with escaping

* Add `compress` option to enable gzip compression in `next start`.

* Add compress option, defaulting to true

* Disable compression for serverless target

* Pin compression dep
Co-Authored-By: NJoe Haddad <timer150@gmail.com>

* Pin compression types
Co-Authored-By: NJoe Haddad <timer150@gmail.com>

* lockfile update for locked compression deps

* simplify compression middleware application

* add test for compression

Closes https://github.com/zeit/next.js/issues/6240