UI for introducing two contacts to each other

Show system notification for successful introductions

briar-android/src/org/briarproject/android/contact/ConversationNoticeItem.java

@@ -0,0 +1,19 @@
+package org.briarproject.android.contact;
+
+import org.briarproject.api.sync.MessageId;
+
+abstract class ConversationNoticeItem extends ConversationItem {
+
+	private String text;
+
+	public ConversationNoticeItem(MessageId id, String text, long time) {
+		super(id, time);
+
+		this.text = text;
+	}
+
+	public String getText() {
+		return text;
+	}
+
+}