allow showing of > 1 character for chr names.
allow showing of > 1 character for chr names.

shashidhar22/bio-playground,brentp/bio-playground,brentp/bio-playground,shashidhar22/bio-playground,brentp/bio-playground,shashidhar22/bio-playground,shashidhar22/bio-playground,brentp/bio-playground,brentp/bio-playground,shashidhar22/bio-playground,shashidhar22/bio-playground,brentp/bio-playground