fixed compile issues

src/main/java/com/inteligr8/alfresco/activiti/ApsPublicRestApi.java

@@ -12,7 +12,7 @@ import com.inteligr8.rs.ClientConfiguration;
  */
 public abstract class ApsPublicRestApi {
 	
-	abstract ClientConfiguration getConfig();
+	protected abstract ClientConfiguration getConfig();
 	
 	protected abstract <T> T getApi(Class<T> apiClass);
 	

src/main/java/com/inteligr8/alfresco/activiti/ApsPublicRestApiCxfImpl.java

@@ -17,7 +17,7 @@ public class ApsPublicRestApiCxfImpl extends ApsPublicRestApi {
 	private ApsClientCxfImpl client;
 	
 	@Override
-	ClientConfiguration getConfig() {
+	protected ClientConfiguration getConfig() {
 		return this.client.getConfig();
 	}
 

src/main/java/com/inteligr8/alfresco/activiti/ApsPublicRestApiJerseyImpl.java

@@ -17,7 +17,7 @@ public class ApsPublicRestApiJerseyImpl extends ApsPublicRestApi {
 	private ApsClientJerseyImpl client;
 	
 	@Override
-	ClientConfiguration getConfig() {
+	protected ClientConfiguration getConfig() {
 		return this.client.getConfig();
 	}