NIO-96 Moves endpoint property out of WebServer mixin

Signed-off-by: Oren Leiman <oleiman@neutral.io>
Merge branch 'feature/update_web' of github.com:nio-blocks/mixins into feature/update_web

Signed-off-by: Oren Leiman <oleiman@neutral.io>

Conflicts:
	web_server/web_server_block.py