Revert "Exclude mina-core from Apache Directory LDAP API library"

This reverts commit bbd0983.

Author: ebyhr

gateway-ha/pom.xml

@@ -227,10 +227,6 @@
             <artifactId>api-all</artifactId>
             <version>2.1.7</version>
             <exclusions>
-                <exclusion>
-                    <groupId>org.apache.mina</groupId>
-                    <artifactId>mina-core</artifactId>
-                </exclusion>
                 <exclusion>
                     <groupId>org.apache.servicemix.bundles</groupId>
                     <artifactId>org.apache.servicemix.bundles.dom4j</artifactId>