Updated logo javascript to allow negative scores.
Updated logo javascript to allow negative scores.

Janelia-Farm-Xfam/LogoServer,ProteinsWebTeam/LogoServer,ProteinsWebTeam/LogoServer,ProteinsWebTeam/LogoServer,ProteinsWebTeam/LogoServer,ProteinsWebTeam/LogoServer,ProteinsWebTeam/LogoServer,Janelia-Farm-Xfam/LogoServer,Janelia-Farm-Xfam/LogoServer,Janelia-Farm-Xfam/LogoServer,Janelia-Farm-Xfam/LogoServer,Janelia-Farm-Xfam/LogoServer