standalone sets websocket url from 'window.location.host'
Merge commit 'c97ac806213a4a2963220be60e7542d44d5dbe78' into standalone
add standalone to 'test-server.R'
Merge branch 'master' into standalone

Conflicts:
	src/epiviz/data/request.js
	src/epiviz/data/websocket-data-provider.js
fix typo