roster: nowrap for column group headers #240
roster: nowrap for column group headers #240

erose/studentinsights,erose/studentinsights,erose/studentinsights,erose/studentinsights,studentinsights/studentinsights,jhilde/studentinsights,studentinsights/studentinsights,codeforamerica/somerville-teacher-tool,jhilde/studentinsights,codeforamerica/somerville-teacher-tool,codeforamerica/somerville-teacher-tool,studentinsights/studentinsights,jhilde/studentinsights,jhilde/studentinsights,codeforamerica/somerville-teacher-tool,hunterowens/somerville-teacher-tool,hunterowens/somerville-teacher-tool,studentinsights/studentinsights,hunterowens/somerville-teacher-tool