Fix arguments passing in new postMessage code

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@2594 eee81c28-f429-11dd-99c0-75d572ba1ddd
Minor: WS

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@2595 eee81c28-f429-11dd-99c0-75d572ba1ddd
Note on limitations (these limitations existed previously to the eval() dependency removal)

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@2596 eee81c28-f429-11dd-99c0-75d572ba1ddd