<Swing Dev> [8] Review request for 8020708 NLS: mnemonics missing in SwingSet2/JInternalFrame demo

[Alexander Scherbatiy]

Hello,

Could you review the fix:
   bug: https://bugs.openjdk.java.net/browse/JDK-8020708
   webrev: http://cr.openjdk.java.net/~alexsch/8020708/webrev.00

   The fix updates mnemonics for the InternalFrameTitlePane.*Button 
properties
   - Mnemonics are loaded from the *.properties files
   - (&Mnemonic) is added for the localized text that does not contains 
the mnemonics char


Thanks,
Alexandr.