[LUCENENET-494] - Port error in FieldcacheRangeFilter.  Changed comparison of sbyte
[LUCENENET-494] - Port error in FieldcacheRangeFilter.  Changed comparison of sbyte

git-svn-id: 6c68d65edd5507bf6b37474e0d155329cbeeff2a@1349061 13f79535-47bb-0310-9956-ffa450edef68

jeme/lucenenet,NightOwl888/lucenenet,apache/lucenenet,zmaruo/lucenenet,sisve/lucenenet,laimis/lucenenet,antiufo/lucenenet,jpsullivan/lucenenet,apache/lucenenet,antiufo/lucenenet,zmaruo/lucenenet,jeme/lucenenet,apache/lucenenet,jpsullivan/lucenenet,mdissel/lucene.net,jeme/lucenenet,mdissel/lucene.net,laimis/lucenenet,NightOwl888/lucenenet,sisve/lucenenet,NightOwl888/lucenenet,apache/lucenenet,jeme/lucenenet,NightOwl888/lucenenet