[SCM-972] Deprecate SCM Logger in favor of SLF4J

This closes #129

Author: michael-o

maven-scm-api/src/main/java/org/apache/maven/scm/log/DefaultLog.java

@@ -22,6 +22,7 @@
 /**
  * @author <a href="mailto:[email protected]">Emmanuel Venisse</a>
  */
+@Deprecated
 public class DefaultLog
     implements ScmLogger
 {

maven-scm-api/src/main/java/org/apache/maven/scm/log/ScmLogDispatcher.java

@@ -26,6 +26,7 @@
  * @author <a href="mailto:[email protected]">Emmanuel Venisse</a>
  *
  */
+@Deprecated
 public class ScmLogDispatcher
     implements ScmLogger
 {

maven-scm-api/src/main/java/org/apache/maven/scm/log/ScmLogger.java

@@ -23,6 +23,7 @@
  * @author <a href="mailto:[email protected]">Emmanuel Venisse</a>
  *
  */
+@Deprecated
 public interface ScmLogger
 {
     boolean isDebugEnabled();

maven-scm-api/src/main/java/org/apache/maven/scm/manager/BasicScmManager.java

@@ -30,8 +30,9 @@ public class BasicScmManager
     extends AbstractScmManager
 {
     /** {@inheritDoc} */
+    @Deprecated
     protected ScmLogger getScmLogger()
     {
         return new DefaultLog();
     }
-}
+}

maven-scm-api/src/main/java/org/apache/maven/scm/provider/ScmProvider.java

@@ -71,6 +71,7 @@ public interface ScmProvider
      *
      * @param logger The logger
      */
+    @Deprecated
     void addListener( ScmLogger logger );
 
     boolean requiresEditMode();

maven-scm-managers/maven-scm-manager-plexus/src/main/java/org/apache/maven/scm/manager/plexus/PlexusLogger.java

@@ -26,6 +26,7 @@
  * @author <a href="mailto:[email protected]">Emmanuel Venisse</a>
  *
  */
+@Deprecated
 public class PlexusLogger
     implements ScmLogger
 {