Modified all in-execute DML to use optAllOrNone flag so any error causes a full rollback. 
Modified all in-execute DML to use optAllOrNone flag so any error causes
a full rollback. 

Resolved #751
jlantz/Cumulus,cyberjus/Cumulus,Zosoled/Cumulus,abeyer/Cumulus,cdcarter/Cumulus,SalesforceFoundation/Cumulus,SalesforceFoundation/Cumulus,jarkos88/Cumulus1,jlantz/Cumulus,jlantz/Cumulus,jarkos88/Cumulus1,InspectorSpacetime/Cumulus,BillFlorioSFDC/Cumulus,abeyer/Cumulus,BillFlorioSFDC/Cumulus,Zosoled/Cumulus,InspectorSpacetime/Cumulus,InspectorSpacetime/Cumulus,BillFlorioSFDC/Cumulus,cyberjus/Cumulus,Zosoled/Cumulus,BillFlorioSFDC/Cumulus,ehrenfoss/Cumulus,jarkos88/Cumulus1,cyberjus/Cumulus,abeyer/Cumulus,Zosoled/Cumulus,ehrenfoss/Cumulus,ehrenfoss/Cumulus,cyberjus/Cumulus,cdcarter/Cumulus,abeyer/Cumulus,InspectorSpacetime/Cumulus,cdcarter/Cumulus,jlantz/Cumulus,cdcarter/Cumulus,SalesforceFoundation/Cumulus,SalesforceFoundation/Cumulus