add env variables to nerves workflow

update nerves github action

fix conversion from annexb to elementary stream (#509)

* fix conversion from annexb to elementray stream

* update version

fix onvif get stream uri (#508)

add reverse proxy (#492)

* add reverse proxy

* add feature flag to enable reverse proxy

* update version

* delete bundlex folder in Dockerfile

* refactor timestamp adjuster

* fix video assembler

* upgrade deps

use httpoison as an adapter for Req (#488)

* use http poison as an adapter for Req

* upgrade version

fix thumbnailer and webrtc element (#487)

* keep rtsp connection alive

* upgrade

release v0.15 (#486)

* release v0.15.0

* pin membrane rtsp version

* upgrade rtsp

* restore keep alive default value

release v0.14.0 (#470)

ui: add url field to device (#446)

* ui: add url field to device

* upgrade deps

* update release dockerfile