Reuse gatekeeper for multiple merged streams. Fixes #347.
Reuse gatekeeper for multiple merged streams. Fixes #347.

mathisonian/vega-browserify,shaunstanislaus/vega,vega/vega,Applied-Duality/vega,cesine/vega,linearregression/vega,nyurik/vega,nyurik/vega,lgrammel/vega,carabina/vega,uwdata/vega,seyfert/vega,smartpcr/vega,vega/vega,shaunstanislaus/vega,timelyportfolio/vega,Applied-Duality/vega,seyfert/vega,Applied-Duality/vega,linearregression/vega,timelyportfolio/vega,nyurik/vega,linearregression/vega,mcanthony/vega,vega/vega,mathisonian/vega-browserify,gdseller/vega,seyfert/vega,shaunstanislaus/vega,cesine/vega,vega/vega,carabina/vega,carabina/vega,mathisonian/vega-browserify,cesine/vega,smartpcr/vega,mcanthony/vega,smartpcr/vega,uwdata/vega,gdseller/vega,gdseller/vega,mcanthony/vega