Changed the root package from net.sf.briar to org.briarproject.

briar-api/src/org/briarproject/api/messaging/GroupId.java

@@ -0,0 +1,22 @@
+package org.briarproject.api.messaging;
+
+import java.util.Arrays;
+
+import org.briarproject.api.UniqueId;
+
+/**
+ * Type-safe wrapper for a byte array that uniquely identifies a {@link Group}.
+ */
+public class GroupId extends UniqueId {
+
+	public GroupId(byte[] id) {
+		super(id);
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if(o instanceof GroupId)
+			return Arrays.equals(id, ((GroupId) o).id);
+		return false;
+	}
+}