icons folder added to built.properties.

org.eclipselabs.mscript/plugins/org.eclipselabs.mscript.ide.ui/build.properties

@@ -2,4 +2,5 @@ source.. = src/
 output.. = bin/
 bin.includes = META-INF/,\
                .,\
-               plugin.xml
+               plugin.xml,\
+               icons/