Added reset to duration dialog

app/src/main/java/eu/faircode/email/FragmentDialogDuration.java

@@ -101,6 +101,16 @@ public class FragmentDialogDuration extends FragmentDialogEx {
                         sendResult(RESULT_OK);
                     }
                 })
+                .setNeutralButton(R.string.title_reset, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        Bundle args = getArguments();
+                        args.putLong("duration", 0);
+                        args.putLong("time", new Date().getTime());
+
+                        sendResult(RESULT_OK);
+                    }
+                })
                 .create();
 
         btn1hour.setOnClickListener(new View.OnClickListener() {

app/src/main/res/values/strings.xml

@@ -808,6 +808,7 @@
     <string name="title_1day">1 day</string>
     <string name="title_now">Now</string>
     <string name="title_after">After %1$s</string>
+    <string name="title_reset">Reset</string>
 
     <string name="title_icalendar_accept">Accept</string>
     <string name="title_icalendar_decline">Decline</string>