Fix dropbox login on iOS 9

Sources/VLC for iOS-Info.plist

@@ -237,6 +237,10 @@
 	<string>1</string>
 	<key>LSApplicationCategoryType</key>
 	<string></string>
+	<key>LSApplicationQueriesSchemes</key>
+	<array>
+		<string>dbapi-2</string>
+	</array>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>NSAppTransportSecurity</key>