Windows 10 RTM Release - September 2015 Update 2

• CortanaVoiceCommand: JS progress screen was always empty; "When is my trip to..." would produce duplicate responses.
• MediaImport: Null out session after disposing so we don't accidentally try to use it. Enable the Find options after a source is selected.
• NFC: fix conflict where an Enabled card can overtake a ForegroundOverride card. Fix selection logic in PcsSdk. Improve logging. Fix query string if SmartCardReaderKind is Any. Fix crash caused by changing policy from Enabled directly to ForegroundOverride.
• PullToRefresh: various fixes, most significantly, to delay the refresh until the user completes the pull gesture.
• SecondaryTiles: fix malformed XML for silent toasts.
• SpeechRecognitionAndSynthesis: Fix scenario 10 which created an empty grammar (not allowed).
• WRL server samples: Bring event args into alignment with Windows Runtime conventions.
• Various README updates
• New samples: CameraManualControls, CameraResolution (C++ and JS)