Fix minimum number of steward keys

The minimum is necessary for generating the keys not when
loading them

src/refit/message/REFITKeyManager.java

@@ -121,7 +121,7 @@ public class REFITKeyManager {
 			System.exit(1);
 		}
 
-		int maxGroupId = Math.max(4, REFITStewardGroups.stewardOrderGroupCount());
+		int maxGroupId = REFITStewardGroups.stewardOrderGroupCount();
 		ThresholdKeyPair[] keyPairs = new ThresholdKeyPair[maxGroupId];
 
 		for (int i = 0; i < maxGroupId; i++) {
@@ -203,7 +203,8 @@ public class REFITKeyManager {
 		String filename = getKeyPath(KeyType.THRESHOLD, 3 * REFITConfig.FAULTS_TO_TOLERATE + 1);
 		DataOutputStream dat = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(filename)));
 
-		for (int i = 0; i < REFITStewardGroups.stewardOrderGroupCount(); i++) {
+		int maxGroupId = Math.max(4, REFITStewardGroups.stewardOrderGroupCount());
+		for (int i = 0; i < maxGroupId; i++) {
 			Dealer dealer = generateThresholdKey();
 			GroupKey groupKey = dealer.getGroupKey();
 			KeyShare[] shares = dealer.getShares();