Reimplemented BigCouch supporting changes for sequence as an Array re…

…turnvalue and wanting the since= parameter as the second array value.

lib/feed.js

@@ -168,7 +168,8 @@ Feed.prototype.confirm = function confirm_feed() {
     }
 
     // If the next change would come after the current update_seq, just fake a catchup event now.
-    if(self.original_db_seq == self.since) {
+    //Fixed for Array type sequence of BigCouch (compare the second item)
+    if ((self.original_db_seq[0] || self.original_db_seq) == (self.since[0] || self.since)) {
       self.caught_up = true
       self.emit('catchup', db.update_seq)
     }
@@ -200,6 +201,11 @@ Feed.prototype.query = function query_feed() {
   if(query_params.feed == 'longpoll' && (!query_params.limit || query_params.limit > poll_size))
     query_params.limit = poll_size;
 
+  //Fix for Array type sequence of BigCouch
+  if (query_params.since[1]) {
+    query_params.since = query_params.since[1];
+  }
+
   var feed_url = self.db + (self.is_db_updates ? '' : '/_changes') + '?' + querystring.stringify(query_params);
 
   self.headers.accept = self.headers.accept || 'application/json';
@@ -610,7 +616,8 @@ Feed.prototype.check_for_catchup = function check_for_catchup(seq) {
     return
   if(self.caught_up)
     return
-  if(seq < self.original_db_seq)
+  //Fix for Array type sequence of BigCouch
+  if ((seq[0] || seq) < (self.original_db_seq[0] || self.original_db_seq))
     return
 
   self.caught_up = true