Log Message:
*/*: update NGINX JavaScript 0.8.8 -> 0.8.9

Bump PKGREVISIONs for www/nginx, www/nginx-devel, www/unit.

<ChangeLog>

nginx modules:

*) Bugfix: removed extra VM creation per server.
   Previously, when js_import was declared in http or stream blocks,
   an extra copy of the VM instance was created for each server
   block. This was not needed and consumed a lot of memory for
   configurations with many server blocks.

  This issue was introduced in 9b674412 (0.8.6) and was partially
  fixed for location blocks only in 685b64f0 (0.8.7).

Core:

*) Feature: added fs module for QuickJS engine.

</ChangeLog>