fixed failing unit tests due to addition of datestring on project mock data

Author: Mpdreamz

src/Tests/Framework/MockData/Project.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Globalization;
 using System.Linq;
 using Bogus;
 using Nest;
@@ -63,7 +62,7 @@ public class Project
 			Name = Projects.First().Name,
 			LeadDeveloper = new Developer() { FirstName = "Martijn", LastName = "Laarman" },
 			StartedOn = new DateTime(2015, 1, 1),
-			DateString = new DateTime(2015, 1, 1).ToString(CultureInfo.InvariantCulture),
+			DateString = new DateTime(2015, 1, 1).ToString("yyyy-MM-ddTHH\\:mm\\:ss.fffffffzzz"),
 			Location = new SimpleGeoPoint { Lat = 42.1523, Lon = -80.321 }
 		};
 
@@ -73,7 +72,7 @@ public class Project
 			state = "BellyUp",
 			startedOn = "2015-01-01T00:00:00",
 			lastActivity = "0001-01-01T00:00:00",
-			dateString = "2015-01-01T00:00:00",
+			dateString = new DateTime(2015, 1, 1).ToString("yyyy-MM-ddTHH\\:mm\\:ss.fffffffzzz"),
 			leadDeveloper = new { gender = "Male", id = 0, firstName = "Martijn", lastName = "Laarman" },
 			location = new { lat = Instance.Location.Lat, lon = Instance.Location.Lon }
 		};

src/Tests/Indices/MappingManagement/PutMapping/PutMappingApiTest.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using Elasticsearch.Net;
 using Nest;
 using Tests.Framework;
@@ -50,6 +49,10 @@ protected override LazyResponses ClientUsage() => Calls(
 					},
 					type = "object"
 				},
+				dateString = new
+				{
+					type = "string"
+				},
 				description = new
 				{
 					type = "string"