luci-app-dockerman: JS API

luci-app-dockerman: JS API

requires either a reverse proxy which injects a suitable header

Access-Control-Allow-Origin: ...

or the local browser runs an extension like:

https://addons.mozilla.org/en-US/firefox/addon/cors-everywhere/
https://addons.mozilla.org/en-US/firefox/addon/access-control-allow-origin/
https://addons.mozilla.org/en-US/firefox/addon/cors-unblock/
https://addons.mozilla.org/en-US/firefox/addon/cross-domain-cors/

Then the local JS API can make calls to:

http :// x.x.x.x:2375 or https :// x.x.x.x:2376

Signed-off-by: Paul Donald <redacted>