Permissions dialog description.

Signal/Signal-Info.plist

@@ -2,6 +2,12 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>NSContactsUsageDescription</key>
+	<string>Signal uses your AddressBook as contacts list. We do not store your contacts on the server.</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>Signal needs access to your microphone to make and receive phone calls.</string>
+	<key>CFBundleGetInfoString</key>
+	<string></string>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
 	<key>CFBundleDisplayName</key>