Bump version and build number to v2.13.0.0.

// FREEBIE

Signal/Signal-Info.plist

@@ -38,7 +38,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>2.12.2</string>
+	<string>2.13.0</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleURLTypes</key>
@@ -55,7 +55,7 @@
 		</dict>
 	</array>
 	<key>CFBundleVersion</key>
-	<string>2.12.2.0</string>
+	<string>2.13.0.0</string>
 	<key>ITSAppUsesNonExemptEncryption</key>
 	<false/>
 	<key>LOGS_EMAIL</key>