FEATURE: Add ESP package.json esp. cache directive.
REFACTOR: Cleanup ESP template appweb.conf files.
FIX: JSON parsing of query strings with [].
FEATURE: Add esp —force
FIX: Move ESP pak templates under a Pak name sub directory.

Do this to prevent templates from one pack clashing with another.
Also make appweb.conf a template that is generated and not an exported file.
Also mark esp-* oaks as precious.
FIX: Make ESP template index.esp not modified during generation.

Add getConfig() API to return package.json fields that index.esp can then access.
FIX: esp upgrade.
FIX: generating appweb.conf from template.

Fix corrupt client scripts package.json property