Reduce image size.

git-svn-id: http://csipsimple.googlecode.com/svn/trunk/CSipSimple@2271 9f815046-5998-e9c0-b7e2-ac03a23edfa4
Fixes issue 2431 : add NibTel wizard

git-svn-id: http://csipsimple.googlecode.com/svn/trunk/CSipSimple@2272 9f815046-5998-e9c0-b7e2-ac03a23edfa4