allow specifying HTTP port for Zigbee/Hue

[wollew]

Some alternative Zigbee bridges (i.e. Phoscon) might be running on non-standard HTTP ports. This PR allows specifying a HTTP port so you can still use the Hue integration for these devices also.

Committer: wollew

[Arksine]

The change looks good to me, however the commit needs to be signed off. If you dont want to amend the commit message it is fine to add the Signed-off-by line to the pull request. Thanks.

[wollew]

Signed-off-by: Wolfgang Miller-Reichling wolfgang+github@miller-reichling.de

[Arksine]

Thanks.