somehow a single import statement got lost :)

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@893271 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/dependencymanager/core/src/main/java/org/apache/felix/dm/DependencyManager.java b/dependencymanager/core/src/main/java/org/apache/felix/dm/DependencyManager.java
index 1c7a126..1f2c032 100644
--- a/dependencymanager/core/src/main/java/org/apache/felix/dm/DependencyManager.java
+++ b/dependencymanager/core/src/main/java/org/apache/felix/dm/DependencyManager.java
@@ -40,6 +40,7 @@
 import org.apache.felix.dm.impl.dependencies.ServiceDependencyImpl;
 import org.apache.felix.dm.impl.dependencies.TemporalServiceDependencyImpl;
 import org.apache.felix.dm.service.Service;
+import org.osgi.framework.BundleContext;
 
 /**
  * The dependency manager. Manages all services and their dependencies.