Turned summarizeErrors into an option, false by default
Turned summarizeErrors into an option, false by default

jarekwg/pyxero,schinckel/pyxero,thisismyrobot/pyxero,direvus/pyxero,wegotpop/pyxero,unomena/pyxeropos,MJMortimer/pyxero,jacobg/pyxero,freakboy3742/pyxero,jaymcconnell/pyxero,unomena/pyxero,opendesk/pyxero