SEC-1881: Renamed **/*Test.java to **/*Tests.java since **/*Test.java are not included in surefire configuration

NOTE: Some tests no longer pass and thus are being ignored until SEC-1882 is fixed. This is still better than
the previous situation since before all the tests ending in Test.java were ignored and this ensures that most of
these tests will be ran with the build.

core/src/test/java/org/springframework/security/core/authority/mapping/MapBasedAttributes2GrantedAuthoritiesMapperTests.java

@@ -19,7 +19,7 @@ import org.springframework.security.core.authority.mapping.MapBasedAttributes2Gr
  * @author Ruud Senden
  */
 @SuppressWarnings("unchecked")
-public class MapBasedAttributes2GrantedAuthoritiesMapperTest {
+public class MapBasedAttributes2GrantedAuthoritiesMapperTests {
 
     @Test(expected=IllegalArgumentException.class)
     public void testAfterPropertiesSetNoMap() throws Exception {

core/src/test/java/org/springframework/security/remoting/dns/JndiDnsResolverTests.java

@@ -34,7 +34,7 @@ import org.junit.Test;
  * @author Mike Wiesner
  * @since 3.0
  */
-public class JndiDnsResolverTest {
+public class JndiDnsResolverTests {
 
     private JndiDnsResolver dnsResolver;
     private InitialContextFactory contextFactory;