Link to Prolog Cafe from http://code.google.com/p/prolog-cafe/

This is "our" fork of the Prolog Cafe system.

Change-Id: I3dfb22b6eb9546f5eaea26f8f165d622f5ac3131
Signed-off-by: Shawn O. Pearce <sop@google.com>

Documentation/licenses.txt

@@ -36,6 +36,7 @@ Included Components
 |Ehcache                    | <<apache2,Apache License 2.0>>
 |mime-util                  | <<apache2,Apache License 2.0>>
 |Jetty                      | <<apache2,Apache License 2.0>>, or link:http://www.eclipse.org/legal/epl-v10.html[EPL]
+|Prolog Cafe                | <<prolog_cafe,EPL or GPL>>
 |Google Code Prettify       | <<apache2,Apache License 2.0>>
 |JGit                       | <<jgit,New-Style BSD>>
 |JSch                       | <<sshd,New-Style BSD>>
@@ -399,6 +400,23 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.
 ----
 
+[[prolog_cafe]]
+Prolog Cafe - EPL or GPL
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Originally developed by Mutsunori BANBARA and Naoyuki TAMURA at the
+Kobe University, JAPAN. Gerrit Code Review uses a fork derived from
+the 1.2.5 release.
+
+Prolog Cafe is dual licensed and available under either the
+link:http://opensource.org/licenses/eclipse-1.0.php[Eclipse Public License],
+or the
+link:http://www.gnu.org/licenses/gpl-2.0.html[GPL version 2.0 (or later)].
+
+In the context of Gerrit Code Review, Prolog Cafe is consumed
+under either the EPL or GPL version 3.0 as GPL version 2.0 is
+not compatible with Apache License 2.0.
+
 [[h2]]
 H2 Database - EPL or modified MPL
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

gerrit-server/pom.xml

@@ -158,5 +158,10 @@ limitations under the License.
       <groupId>dk.brics.automaton</groupId>
       <artifactId>automaton</artifactId>
     </dependency>
+
+    <dependency>
+      <groupId>com.googlecode.prolog-cafe</groupId>
+      <artifactId>PrologCafe</artifactId>
+    </dependency>
   </dependencies>
 </project>

pom.xml

@@ -752,6 +752,12 @@ limitations under the License.
         <artifactId>automaton</artifactId>
         <version>1.11.2</version>
       </dependency>
+
+      <dependency>
+        <groupId>com.googlecode.prolog-cafe</groupId>
+        <artifactId>PrologCafe</artifactId>
+        <version>1.3-SNAPSHOT</version>
+      </dependency>
     </dependencies>
   </dependencyManagement>