gitosis: using MkdirAll instead of Mkdir
gitosis: using MkdirAll instead of Mkdir

MkdirAll does not return error if the directory already exists.

mderaldo/tsuru,ggarnier/tsuru,mderaldo/tsuru,gwmoura/tsuru,jblancett/tsuru,cezarsa/tsuru,RichardKnop/tsuru,Endika/tsuru,gciotta/tsuru,tsuru/tsuru,guilhermebr/tsuru,4eek/tsuru,hugoantunes/tsuru,Endika/tsuru,gwmoura/tsuru,jblancett/tsuru,4eek/tsuru,tsuru/tsuru,cezarsa/tsuru,tuxmonteiro/tsuru,cgvarela/tsuru,hcxiong/tsuru,ArxdSilva/tsuru,gciotta/tsuru,tsuru/tsuru,ArxdSilva/tsuru,RichardKnop/tsuru,cezarsa/tsuru,firebitsbr/tsuru,gwmoura/tsuru,4eek/tsuru,ggarnier/tsuru,firebitsbr/tsuru,mderaldo/tsuru,jblancett/tsuru,RichardKnop/tsuru,ggarnier/tsuru,kgrvamsi/tsuru,Endika/tsuru,hcxiong/tsuru,ArxdSilva/tsuru,tsuru/tsuru,kgrvamsi/tsuru,hcxiong/tsuru,cezarsa/tsuru,ggarnier/tsuru,firebitsbr/tsuru,tuxmonteiro/tsuru,ArxdSilva/tsuru,guilhermebr/tsuru,tuxmonteiro/tsuru,gciotta/tsuru,cgvarela/tsuru,kgrvamsi/tsuru,guilhermebr/tsuru,cgvarela/tsuru,guilhermebr/tsuru,hugoantunes/tsuru