CFRCPRAP-143: change expand property to react base on alignment
CFRCPRAP-145: child node with no available parent need to consider as roots
EJPLUGIN-176 added preview support for tree renderer
CFRCPRAP-146: refine button-bar of dialogs to match content margins
EJPLUGIN-176: added preview support for treetable renderer
EJPLUGIN-174: added HTML preview support
EJPLUGIN-174: added HTML preview support
CFRCPRAP-144 added ListItemRenderer for RAP projects
CFRCPRAP-147: NPE fixed in RAP project when Menu actionProcessor not provided
CFRCPRAP-148: make sure set all blocks margins same
CFRCPRAP-151:  date control in swt  month is 0 base index
EJPLUGIN-182 : New preview support for DataTime renderer
CFRCPRAP-136:fixed incorrect hint on checkboxItem
EJPLUGIN-185 : Screen Preview need to match Main Screen UI previews
 public static String[] propmptMultipleFileUpload(String title)
CFRCPRAP-153: new API to support File download
added Workaround for addVerifyListener Issue in RAP
Merge branch 'develop' into rc2.2.0
make sure to leave bottom margin on Layout Group with header
Merge branch 'develop' into rc2.2.0