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libccrtp was depending on commoncpp2, and have been replaced by a version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/test/shell.cpp b/jni/libucommon/sources/test/shell.cpp
new file mode 100644
index 0000000..e4585e6
--- /dev/null
+++ b/jni/libucommon/sources/test/shell.cpp
@@ -0,0 +1,65 @@
+// Copyright (C) 2009-2010 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/>.
+
+#ifndef DEBUG
+#define DEBUG
+#endif
+
+#include <ucommon/ucommon.h>
+
+#include <stdio.h>
+
+using namespace UCOMMON_NAMESPACE;
+
+extern "C" int main()
+{
+    int test_argc;
+    char *test_argv[6];
+
+    shell::bind("test");
+
+    test_argc = 5;
+    test_argv[0] = (char *)"test";
+
+    test_argv[1] = (char *)"--lines=5";
+    test_argv[2] = (char *)"-r";
+    test_argv[3] = (char *)"a";
+    test_argv[4] = (char *)"b";
+    test_argv[5] = NULL;
+
+    shell::flagopt rflag('r', "--reverse", "reverse order of arguments");
+    shell::flagopt tflag('t', "--testing", "never hit this flag");
+    shell::numericopt lines('l', "--lines", "number of lines in output");
+    shell args(test_argc, test_argv);
+
+    assert(!tflag);
+    assert(is(rflag));
+    assert(*lines == 5);
+    assert(args() == 2);            // two file arguments left
+    assert(eq(args[0], "a"));       // first file argument is "a"
+
+    string_t prefix, subdir, basedir;
+
+    prefix = shell::path(shell::SYSTEM_PREFIX);
+    subdir = shell::path(shell::SYSTEM_PREFIX, "test");
+    basedir = shell::path(shell::SYSTEM_PREFIX, "/test");
+
+    prefix = prefix + "/test";
+
+    assert(eq(basedir, "/test"));
+    assert(eq(subdir, prefix));
+}