Windows 10 RTM Release - August 2015 Update 4

• Cosmetic fixes to README for OCR sample.
• SpeechRecognitionAndSynthesis sample:
  • JavaScript sample failed to re-enable drop down box in scenarios 1 and 2.
  • C# sample crashed if unable to activate microphone.
• PasswordVault sample:
  • JavaScript sample crashed trying to delete nonexistent credential
  • JavaScript sample didn't actually initialize the PasswordVault in the background.
  • Fix misleading comments.
  • Demonstrate RetrievePassword method.
  • Rework the UI so it feels more like a sample.
• NFC sample:
  • Auto-responds to SELECT APDU and not to READ RECORD APDU. This more closely models how apps in the real world behave.
  • Fix deadlock if user taps quickly on an NFC reader. (SmartCardEmulator::Start() can raise the ConnectionDeactivated event on the same thread as IBackgroundTask::Run(). Since an SRWLock cannot promote a reader lock into a writer lock, calling LockShared() in the Run() method and LockExclusive() in the ConnectionDeactivated event handler will cause a deadlock.)
• New scenario in XamlListView sample which demonstrates use of ListViewPersistenceHelper to restore a list's scroll position.
• Added C++ version of BasicFaceDetection sample.
• Fix broken Trademark links in samples template.
• New samples: Calendar, DisablingScreenCapture, GlobalizationPreferences