on android app: send intent for PosLink (fixes #437)

mobile/src/com/cradle/iitc_mobile/IITC_JSInterface.java

@@ -0,0 +1,25 @@
+package com.cradle.iitc_mobile;
+
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.webkit.JavascriptInterface;
+
+// provide communication between IITC script and android app
+public class IITC_JSInterface {
+
+	// context of main activity
+	Context context;
+
+	IITC_JSInterface(Context c) {
+		context = c;
+	}
+
+	// send intent for gmaps link
+	@JavascriptInterface
+	public void intentPosLink(String s) {
+		Intent intent = new Intent(android.content.Intent.ACTION_VIEW,
+				Uri.parse(s));
+		context.startActivity(intent);
+	}
+}