Merge pull request #130 from huitseeker/urlUpdate

Update dead link (in comments)

src/main/java/com/clearspring/analytics/stream/membership/Filter.java

@@ -63,7 +63,7 @@ ICompactSerializer<Filter> getSerializer() {
 
     // Murmur is faster than an SHA-based approach and provides as-good collision
     // resistance.  The combinatorial generation approach described in
-    // http://www.eecs.harvard.edu/~kirsch/pubs/bbbf/esa06.pdf
+    // https://gnunet.org/sites/default/files/LessHashing2006Kirsch.pdf
     // does prove to work in actual tests, and is obviously faster
     // than performing further iterations of murmur.
     public static int[] getHashBuckets(String key, int hashCount, int max) {
@@ -85,4 +85,4 @@ static int[] getHashBuckets(byte[] b, int hashCount, int max) {
         }
         return result;
     }
-}
+}