Added some comments for InstanceMachineHealer.
Added some comments for InstanceMachineHealer.

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