change polling event name to 'progress' to suit convention
change polling event name to 'progress' to suit convention

jdcrensh/jsforce,nutthawan/jsforce,saleswise/jsforce,joeferraro/jsforce,parthiban019/jsforce,lkatney/jsforce,joeferraro/jsforce,saleswise/jsforce,pcon/jsforce,jesperkristensen/jsforce,jsforce/jsforce,nutthawan/jsforce,rdietrick/jsforce,jdcrensh/jsforce,saleswise/jsforce,lkatney/jsforce,bhaskarmelkani/jsforce,pcon/jsforce,parthiban019/jsforce,jesperkristensen/jsforce,bhaskarmelkani/jsforce,pcon/jsforce,kimchouard/jsforce,jsforce/jsforce,jsforce/jsforce