Enabled HC exporting button  if required by template (default is hidden)

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22497 99afaf0d-6903-0410-885a-c66a8bbb5f81
moved getUsedMemorySize method to IDataBase interface

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22498 99afaf0d-6903-0410-885a-c66a8bbb5f81
moved getUsedMemorySize method to IDataBase interface

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22499 99afaf0d-6903-0410-885a-c66a8bbb5f81
moved getUsedMemorySize method to IDataBase interface

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@22500 99afaf0d-6903-0410-885a-c66a8bbb5f81