Fix Group.to_csv to use CSV lib.
Fix Group.to_csv to use CSV lib.

nerdnorth/remote-workers-app,AVee/onebody,mattraykowski/onebody,ferdinandrosario/onebody,hooray4me/onebody,cessien/onebody,mattraykowski/onebody,tochman/onebody,brunoocasali/onebody,ebennaga/onebody,klarkc/onebody,kevinjqiu/onebody,cessien/onebody,acbilimoria/onebody,hooray4me/onebody2,calsaviour/onebody,davidleach/onebody,hschin/onebody,brunoocasali/onebody,Capriatto/onebody,hooray4me/onebody,hschin/onebody,pgmcgee/onebody,nerdnorth/remote-workers-app,davidleach/onebody,calsaviour/onebody,fadiwissa/onebody,AVee/onebody,brunoocasali/onebody,AVee/onebody,nerdnorth/remote-workers-app,kevinjqiu/onebody,klarkc/onebody,tmecklem/onebody,cessien/onebody,mattraykowski/onebody,davidleach/onebody,tochman/onebody,ferdinandrosario/onebody,tmecklem/onebody,davidleach/onebody,klarkc/onebody,seethemhigh/onebody,nerdnorth/remote-workers-app,ebennaga/onebody,hooray4me/onebody,AVee/onebody,seethemhigh/onebody,pgmcgee/onebody,dorman/onebody,tochman/onebody,dorman/onebody,acbilimoria/onebody,hooray4me/onebody2,calsaviour/onebody,dorman/onebody,kevinjqiu/onebody,kevinjqiu/onebody,Capriatto/onebody,acbilimoria/onebody,ferdinandrosario/onebody,ebennaga/onebody,fadiwissa/onebody,Capriatto/onebody,mattraykowski/onebody,cessien/onebody,klarkc/onebody,ferdinandrosario/onebody,fadiwissa/onebody,brunoocasali/onebody,hschin/onebody,pgmcgee/onebody,Capriatto/onebody,tmecklem/onebody,hooray4me/onebody,tmecklem/onebody,calsaviour/onebody,hooray4me/onebody2,fadiwissa/onebody,hooray4me/onebody2,dorman/onebody,tochman/onebody,acbilimoria/onebody,seethemhigh/onebody,seethemhigh/onebody,hschin/onebody,ebennaga/onebody,pgmcgee/onebody