make AssignableVirtualMachine public so that it can be used in TaskScheduler.withAssignableVMsEvaluator (#185)

Author: corindwyer

fenzo-core/src/main/java/com/netflix/fenzo/AssignableVirtualMachine.java

@@ -32,7 +32,7 @@
 /**
  * This class represents a VM that contains resources that can be assigned to tasks.
  */
-class AssignableVirtualMachine implements Comparable<AssignableVirtualMachine>{
+public class AssignableVirtualMachine implements Comparable<AssignableVirtualMachine>{
 
     /* package */ static final String PseuoHostNamePrefix = "FenzoPsueodHost-";
 
@@ -831,7 +831,7 @@ public Map<String, TaskTracker.ActiveTask> getAllCurrentlyAssignedTasks() {
         };
     }
 
-    VirtualMachineCurrentState getVmCurrentState() {
+    public VirtualMachineCurrentState getVmCurrentState() {
         final List<Protos.Offer> offers = new LinkedList<>();
         for (VirtualMachineLease l: leasesMap.values()) {
             offers.add(l.getOffer());