updating displayAdminError to SugarApplication::appendErrorMessage
updating displayAdminError to SugarApplication::appendErrorMessage

echoing out to the page like this breaks the REST API output

dfstrauss/SuiteCRM,horus68/SuiteCRM-Horus68,salesagility/SuiteCRM,ChangezKhan/SuiteCRM,horus68/SuiteCRM-Horus68,MikeyJC/SuiteCRM,lionixevolve/LionixCRM,lionixevolve/LionixCRM,pribeiro42/SuiteCRM,ChangezKhan/SuiteCRM,gcoop-libre/SuiteCRM,pgorod/SuiteCRM,pribeiro42/SuiteCRM,Dillon-Brown/SuiteCRM,lionixevolve/SuiteCRM,dfstrauss/SuiteCRM,gody01/SuiteCRM,dfstrauss/SuiteCRM,daniel-samson/SuiteCRM,gcoop-libre/SuiteCRM,gody01/SuiteCRM,cumanacr/SuiteCRM,lionixevolve/SuiteCRM,daniel-samson/SuiteCRM,pgorod/SuiteCRM,salesagility/SuiteCRM,MikeyJC/SuiteCRM,horus68/SuiteCRM-Horus68,Dillon-Brown/SuiteCRM,salesagility-davidthomson/SuiteCRM,pribeiro42/SuiteCRM,lionixevolve/LionixCRM,gody01/SuiteCRM,lionixevolve/SuiteCRM,salesagility-davidthomson/SuiteCRM,JimMackin/SuiteCRM,ChangezKhan/SuiteCRM,MikeyJC/SuiteCRM,gody01/SuiteCRM,dfstrauss/SuiteCRM,lionixevolve/SuiteCRM,daniel-samson/SuiteCRM,salesagility-davidthomson/SuiteCRM,salesagility/SuiteCRM,gcoop-libre/SuiteCRM,pgorod/SuiteCRM,JanSiero/SuiteCRM,lionixevolve/LionixCRM,Dillon-Brown/SuiteCRM,MikeyJC/SuiteCRM,willrennie/SuiteCRM,samus-aran/SuiteCRM,samus-aran/SuiteCRM,cumanacr/SuiteCRM,JimMackin/SuiteCRM,pgorod/SuiteCRM,JanSiero/SuiteCRM,Dillon-Brown/SuiteCRM,horus68/SuiteCRM-Horus68,lionixevolve/LionixCRM,samus-aran/SuiteCRM,willrennie/SuiteCRM,salesagility-davidthomson/SuiteCRM,pribeiro42/SuiteCRM,lionixevolve/LionixCRM,daniel-samson/SuiteCRM,cumanacr/SuiteCRM,JimMackin/SuiteCRM,JanSiero/SuiteCRM,gcoop-libre/SuiteCRM,samus-aran/SuiteCRM,salesagility/SuiteCRM,cumanacr/SuiteCRM,ChangezKhan/SuiteCRM,JanSiero/SuiteCRM,willrennie/SuiteCRM,JimMackin/SuiteCRM,willrennie/SuiteCRM