Merge pull request #115 from Nosrac/master

Don't appear in share menu unless a URL is being shared

Author: JadenGeller

Helium/HeliumShareExtension/Info.plist

@@ -31,7 +31,10 @@
 		<key>NSExtensionAttributes</key>
 		<dict>
 			<key>NSExtensionActivationRule</key>
-			<string>TRUEPREDICATE</string>
+			<dict>
+				<key>NSExtensionActivationSupportsWebURLWithMaxCount</key>
+				<integer>1</integer>
+			</dict>
 		</dict>
 		<key>NSExtensionPointIdentifier</key>
 		<string>com.apple.share-services</string>