RadWebSettingsWriter uses hardcoded webcontent path and ignores warSourceDirectory

org.apache.maven.plugin.eclipse.writers.rad.RadWebSettingsWriter uses hardcoded location of webcontent during writeModuleTypeFacetCore() (does writer.writeText( "src/main/webapp" ); directly ) and ignores warSourceDirectory which is used to customize the location of the webcontent (besides RAD-6 uses different directory structure hence this problem).