fix #469 DefaultProperyNameInferrer was not applied correctly in the expression visitor

Author: Mpdreamz

src/Nest/Domain/Connection/ConnectionSettings.cs

@@ -70,6 +70,7 @@ public ConnectionSettings(Uri uri, string defaultIndex)
 
 			this.MaximumAsyncConnections = 0;
 			this.DefaultTypeNameInferrer = (t => t.Name.ToLower()); 
+			this.DefaultPropertyNameInferrer = (p => p.ToCamelCase()); 
 			this.DefaultIndices = new FluentDictionary<Type, string>();
 			this.DefaultTypeNames = new FluentDictionary<Type, string>();
 			this.ConnectionStatusHandler = this.ConnectionStatusDefaultHandler;

src/Nest/Resolvers/PropertyNameResolver.cs

@@ -127,7 +127,7 @@ protected override Expression VisitMemberAccess(MemberExpression expression, Sta
 			if (stack != null)
 			{
 				var name = expression.Member.Name;
-				var resolvedName = name.ToCamelCase();
+				var resolvedName = this._settings.DefaultPropertyNameInferrer(name);
 
 				var att = ElasticAttributes.Property(expression.Member);
 				if (att != null)

src/Tests/Nest.Tests.Unit/Internals/Inferno/PropertyNameResolverTests.cs

@@ -51,7 +51,28 @@ public override string ToString()
 				return "static id ftw";
 			}
 		}
-		
+
+		internal class UserItemData
+		{
+			public string Id { get; set; }
+			public string UserId { get; set; }
+			public string Title { get; set; }
+			public string Hidden { get; set; }
+			public string UserLabels { get; set; }
+		}
+
+		[Test]
+		public void TestUsesDefaultPropertyNameResolver()
+		{
+			var settings = new ConnectionSettings(Test.Default.Uri, Test.Default.DefaultIndex)
+				.SetDefaultPropertyNameInferrer(p => p);
+			var client = new ElasticClient(settings);
+			Expression<Func<UserItemData, object>> exp = (m) => m.UserLabels;
+			var propertyName = client.Infer.PropertyPath(exp);
+			Assert.AreEqual("UserLabels", propertyName);
+
+		}
+
 		[Test]
 		public void TestUsesElasticProperty()
 		{

src/Tests/Nest.Tests.Unit/Search/Query/QueriesInQueries/FilteredQueryConditionless.json

@@ -0,0 +1,4 @@
+{
+  "from": 0,
+  "size": 10,
+}