upgraded aggregations to work with 1.2, hopefully if elastic/elasticsearch#6465 is good enough to be merged starting from Elasticsearch 1.3 we can use _meta to greatly simplify parsing

Author: Mpdreamz

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

@@ -37,6 +37,8 @@ private IAggregation ReadAggregation(JsonReader reader, JsonSerializer serialize
 			switch (property)
 			{
 				case "values":
+					reader.Read();
+					reader.Read();
 					return GetPercentilesMetricAggregation(reader, serializer);
 				case "value":
 					return GetValueMetricOrAggregation(reader, serializer);
@@ -105,7 +107,6 @@ private IAggregation GetSingleBucketAggregation(JsonReader reader, JsonSerialize
 			return bucket;
 		}
 
-
 		private IAggregation GetStatsAggregation(JsonReader reader, JsonSerializer serializer)
 		{
 			reader.Read();
@@ -166,7 +167,6 @@ private IAggregation GetDateHistogramAggregation(JsonReader reader, JsonSerializ
 
 		}
 
-
 		private IAggregation GetKeyedBucketItem(JsonReader reader, JsonSerializer serializer)
 		{
 			reader.Read();
@@ -260,7 +260,6 @@ private IAggregation GetBucketAggregation(JsonReader reader, JsonSerializer seri
 			return bucket;
 		}
 
-
 		private IAggregation GetValueMetricOrAggregation(JsonReader reader, JsonSerializer serializer)
 		{
 			reader.Read();
@@ -274,7 +273,6 @@ private IAggregation GetValueMetricOrAggregation(JsonReader reader, JsonSerializ
 			return metric;
 		}
 
-
 		public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
 		{
 			return this.ReadAggregation(reader, serializer);