fix missleading comment in row edit documents
fix missleading comment in row edit documents

in the line edited, the function that's being referred too must call setSavePromise, returning a promise as previously stated does not do anything as the result from events is ignored and not accessible to the caller.
mportuga/ui-grid,aw2basc/ui-grid,louwie17/ui-grid,InteractiveIntelligence/ng-grid,angular-ui/ui-grid,bjossi86/ui-grid,angular-ui/ng-grid,Cosium/ui-grid,Servoy/ng-grid,kenwilcox/ui-grid,angular-ui/ng-grid,Cosium/ui-grid,dlgski/ui-grid,AgDude/ng-grid,bjossi86/ui-grid,ntmuigrid/ntmuigrid,yccteam/ui-grid,YonatanKra/ui-grid,mportuga/ui-grid,dbckr/ui-grid,louwie17/ui-grid,YonatanKra/ui-grid,aw2basc/ui-grid,AgDude/ng-grid,imbalind/ui-grid,dbckr/ui-grid,mportuga/ui-grid,Cosium/ui-grid,angular-ui/ui-grid,dlgski/ui-grid,kenwilcox/ui-grid,angular-ui/ui-grid,dbckr/ui-grid,JayHuang/ng-grid,yccteam/ui-grid,ntmuigrid/ntmuigrid,JLLeitschuh/ui-grid,InteractiveIntelligence/ng-grid,kamikasky/ui-grid,yccteam/ui-grid,JLLeitschuh/ui-grid,Servoy/ng-grid,dlgski/ui-grid,JayHuang/ng-grid,louwie17/ui-grid,YonatanKra/ui-grid,ntmuigrid/ntmuigrid,imbalind/ui-grid,Servoy/ng-grid,angular-ui/ng-grid,kenwilcox/ui-grid,AgDude/ng-grid,bjossi86/ui-grid,imbalind/ui-grid,JayHuang/ng-grid,kamikasky/ui-grid,JLLeitschuh/ui-grid,aw2basc/ui-grid,InteractiveIntelligence/ng-grid,kamikasky/ui-grid