Port to netstandard.

Nit fixes.
Fixed e2e tests.
Added MIT license.

SystemExtensionsTests/Collections/BinaryHeapTests.cs

@@ -1,16 +1,16 @@
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using SystemExtensions.Collections;
+using System.Collections;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
-using SystemExtensions;
+using System;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.Xml.Serialization;
 using System.IO;
 
-namespace SystemExtensions.Collections.Tests
+namespace System.Collections.Tests
 {
     [TestClass()]
     public class BinaryHeapTests
@@ -112,7 +112,7 @@ namespace SystemExtensions.Collections.Tests
             }
             binaryHeap.Clear(false);
             int[] array = binaryHeap.ToArray();
-            if (binaryHeap.Count > 0 || binaryHeap.Capacity != 10)
+            if (binaryHeap.Count > 0 || binaryHeap.Capacity == 10)
             {
                 Assert.Fail();
             }

SystemExtensionsTests/Collections/FibonacciHeapTests.cs

@@ -1,5 +1,5 @@
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using SystemExtensions.Collections;
+using System.Collections;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -9,7 +9,7 @@ using System.Threading;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.IO;
 
-namespace SystemExtensions.Collections.Tests
+namespace System.Collections.Tests
 {
     [TestClass()]
     public class FibonacciHeapTests

SystemExtensionsTests/Collections/PriorityQueueTests.cs

@@ -1,15 +1,15 @@
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using SystemExtensions.Collections;
+using System.Collections;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
-using SystemExtensions;
+using System;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.IO;
 
-namespace SystemExtensions.Collections.Tests
+namespace System.Collections.Tests
 {
     [TestClass()]
     public class PriorityQueueTests

SystemExtensionsTests/Collections/SkipListTests.cs

@@ -1,5 +1,5 @@
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using SystemExtensions.Collections;
+using System.Collections;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -8,7 +8,7 @@ using System.Threading.Tasks;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.IO;
 
-namespace SystemExtensions.Collections.Tests
+namespace System.Collections.Tests
 {
     [TestClass()]
     public class SkipListTests

SystemExtensionsTests/Collections/TreapTests.cs

@@ -1,5 +1,5 @@
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using SystemExtensions.Collections;
+using System.Collections;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -8,7 +8,7 @@ using System.Threading.Tasks;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.IO;
 
-namespace SystemExtensions.Collections.Tests
+namespace System.Collections.Tests
 {
     [TestClass()]
     public class TreapTests

SystemExtensionsTests/Structures/Int32BitStructTests.cs

@@ -1,5 +1,5 @@
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using SystemExtensions.Structures.BitStructures;
+using System.Structures.BitStructures;
 
 namespace SystemExtensionsTests.Structures
 {

SystemExtensionsTests/Structures/Int64BitStructTests.cs

@@ -1,5 +1,5 @@
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using SystemExtensions.Structures.BitStructures;
+using System.Structures.BitStructures;
 
 namespace SystemExtensionsTests.Structures
 {

SystemExtensionsTests/SystemExtensionsTests.csproj

@@ -72,9 +72,9 @@
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\SystemExtensions\SystemExtensions.csproj">
-      <Project>{55850ff3-70e4-4828-beee-39837ac0d24c}</Project>
-      <Name>SystemExtensions</Name>
+    <ProjectReference Include="..\SystemExtensions.NetStandard\SystemExtensions.NetStandard.csproj">
+      <Project>{4ce9e55c-6016-4631-b8d4-4d763dd05f23}</Project>
+      <Name>SystemExtensions.NetStandard</Name>
     </ProjectReference>
   </ItemGroup>
   <Choose>

SystemExtensionsTests/Threading/PriorityThreadPoolTests.cs

@@ -1,5 +1,5 @@
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using SystemExtensions.Threading;
+using System.Threading;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -7,9 +7,9 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Threading;
 using System.Diagnostics;
-using static SystemExtensions.Threading.PriorityThreadPool;
+using static System.Threading.PriorityThreadPool;
 
-namespace SystemExtensions.Threading.Tests
+namespace System.Threading.Tests
 {
     [TestClass()]
     public class PriorityThreadPoolTests