Switch commoncpp2 to ucommon to solve dependency conflicts.

libccrtp was depending on commoncpp2, and have been replaced by a version
depending on ucommon as well.
diff --git a/jni/libucommon/sources/utils/sockaddr.cpp b/jni/libucommon/sources/utils/sockaddr.cpp
new file mode 100644
index 0000000..57a1e73
--- /dev/null
+++ b/jni/libucommon/sources/utils/sockaddr.cpp
@@ -0,0 +1,83 @@
+// Copyright (C) 2010 David Sugar, Tycho Softworks.
+//
+// This file is part of GNU uCommon C++.
+//
+// GNU uCommon C++ is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published
+// by the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// GNU uCommon C++ is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with GNU uCommon C++.  If not, see <http://www.gnu.org/licenses/>.
+
+#include <ucommon/ucommon.h>
+
+using namespace UCOMMON_NAMESPACE;
+
+static shell::flagopt helpflag('h',"--help",    _TEXT("display this list"));
+static shell::flagopt althelp('?', NULL, NULL);
+static shell::flagopt udp('u', "--udp", _TEXT("lookup udp service"));
+
+PROGRAM_MAIN(argc, argv)
+{
+    unsigned type = SOCK_STREAM;
+    unsigned port;
+    char buffer[256];
+
+    shell::bind("sockaddr");
+    shell args(argc, argv);
+
+    if(is(helpflag) || is(althelp)) {
+        printf("%s\n", _TEXT("Usage: sockaddr [options] arguments..."));
+        printf("%s\n\n", _TEXT("Echo command line arguments"));
+        printf("%s\n", _TEXT("Options:"));
+        shell::help();
+        printf("\n%s\n", _TEXT("Report bugs to dyfet@gnu.org"));
+        PROGRAM_EXIT(0);
+    }
+
+    const char *host = args[0];
+    const char *service = args[1];
+
+    if(!host || !service)
+        shell::errexit(1, "use: sockaddr [options] host service\n");
+
+    if(udp)
+        type = SOCK_DGRAM;
+
+    Socket::address addr(host, service, type);
+    linked_pointer<struct sockaddr> ap = addr;
+
+    if(!is(ap))
+        shell::errexit(2, "*** sockaddr: %s/%s: %s\n",
+            host, service, _TEXT("could not find"));
+
+    while(is(ap)) {
+        port = 0;
+        switch(ap->sa_family) {
+        case AF_INET:
+            port = ntohs(ap.in()->sin_port);
+            break;
+#ifdef  AF_INET6
+        case AF_INET6:
+            port = ntohs(ap.in6()->sin6_port);
+            break;
+#endif
+        }
+
+        if(port) {
+            Socket::query(*ap, buffer, sizeof(buffer));
+            printf("%s/%u\n", buffer, port);
+        }
+
+        ap.next();
+    }
+
+    PROGRAM_EXIT(0);
+}
+