Merge pull request #793 from andersosthus/percentile-decimal-fix

Percentile aggregator fails on my maching due to error converting double

Author: Mpdreamz

src/Nest/Resolvers/Converters/Aggregations/AggregationConverter.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 using System.Text.RegularExpressions;
 using Newtonsoft.Json;
@@ -69,7 +70,7 @@ private IAggregation GetPercentilesMetricAggregation(JsonReader reader, JsonSeri
 				reader.Read();
 			while (reader.TokenType != JsonToken.EndObject)
 			{
-				var percentile = double.Parse(reader.Value as string);
+				var percentile = double.Parse(reader.Value as string, CultureInfo.InvariantCulture);
 				reader.Read();
 				var value = reader.Value as double?;
 				percentileItems.Add(new PercentileItem()