changed avg blocktime to be calculated from the entire history

lib/history.js

@@ -429,13 +429,32 @@ History.prototype.getBlockTimes = function()
 		.reverse()
 		.map(function (item)
 		{
-			return item.block.time;
+			return item.block.time / 1000;
 		})
 		.value();
 
 	return blockTimes;
 }
 
+History.prototype.getAvgBlocktime = function()
+{
+	var blockTimes = _( this._items )
+		.sortByOrder( 'height', false )
+		// .filter(function (item)
+		// {
+			// return item.block.trusted;
+		// })
+		// .slice(0, MAX_BINS)
+		.reverse()
+		.map(function (item)
+		{
+			return item.block.time / 1000;
+		})
+		.value();
+
+	return _.sum(blockTimes) / (blockTimes.length === 0 ? 1 : blockTimes.length);
+}
+
 History.prototype.getGasLimit = function()
 {
 	var gasLimitHistory = _( this._items )
@@ -598,7 +617,8 @@ History.prototype.getCharts = function()
 		this._callback(null, {
 			height : _.pluck( chartHistory, 'height' ),
 			blocktime : _.pluck( chartHistory, 'blocktime' ),
-			avgBlocktime : _.sum(_.pluck( chartHistory, 'blocktime' )) / (chartHistory.length === 0 ? 1 : chartHistory.length),
+			// avgBlocktime : _.sum(_.pluck( chartHistory, 'blocktime' )) / (chartHistory.length === 0 ? 1 : chartHistory.length),
+			avgBlocktime : this.getAvgBlocktime(),
 			difficulty : _.pluck( chartHistory, 'difficulty' ),
 			uncles : _.pluck( chartHistory, 'uncles' ),
 			transactions : _.pluck( chartHistory, 'transactions' ),