Merge pull request #24 from jordanfly/patch-1

Update UnitCommand.java

Author: Bytekeeper

src/main/java/bwapi/UnitCommand.java

@@ -62,7 +62,7 @@ public static UnitCommand research(final Unit unit, final TechType tech) {
     }
 
     public static UnitCommand upgrade(final Unit unit, final UpgradeType upgrade) {
-        return new UnitCommand(unit, Research, null, -1, -1, upgrade.id);
+        return new UnitCommand(unit, Upgrade, null, -1, -1, upgrade.id);
     }
 
     public static UnitCommand setRallyPoint(final Unit unit, final Position target) {
@@ -344,4 +344,4 @@ public int hashCode() {
         return result;
     }
 
-}
+}