some work on AboutDlg,

fixed problem with new databases

git-svn-id: https://svn.code.sf.net/p/keepassx/code/trunk@57 b624d157-de02-0410-bad0-e51aec6abb33

src/import/Import_KWalletXml.cpp

@@ -72,7 +72,7 @@ for(int i=0;i<groups.length();i++){
 		NewEntry->Password.setString(pw,true);
 		}
 }
-pwm->filename="";
+pwm->file=NULL;
 pwm->SearchGroupID=-1;
 pwm->CryptoAlgorithmus=ALGO_AES;
 pwm->KeyEncRounds=6000;