CDN provider for cortex, including:
- combo server
- zip server
/root
|-- a
|-- 0.1.0
|-- a.js
|-- md5.json
|-- 0.1.0.zip (dynamic or static)
|-- 0.1.2
|-- b.js
|-- md5.json
|-- 0.1.2.zip (...)
|-- 0.1.0-0.1.2.zip (dynamic)
zip/a/0.1.0.zip
-> shasum -> headers ?
zip/a/0.1.0~0.1.2.zip
zip/a,b/0.1.0~0.1.2,0.1.0~0.2.3.zip
<- version server
.json
## Combo Server
- css
- dynamic css background
- js
###
checksum