Improve User Experience when using Pivot Applets/Applications from the Web Site

TODO list:

• add a pack200 version of Pivot jars, for smaller/faster downloads ... and stripping out debug info, for reducing them so much
  • for unsigned (standard) and for signed jars
• enable jnlp links, to re-enable execution via Java Web Start ... this is already tracked by a specific issue
• etc ...

Note that this ticket is not related to a specific release because should be repeated at any new release ...

If someone has some other ideas ...