Refactor to api connections. Update Checker.

UnitTests/PWConnectionTest.cs

@@ -0,0 +1,22 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+
+namespace UnitTests
+{
+    [TestClass]
+    public class PWConnectionTest
+    {
+        [TestMethod]
+        public void TestCheckUpdate()
+        {
+            PWAPPv2.Source.Config.Configuration practiceConfig = new PWAPPv2.Source.Config.Configuration(".\\Config\\PracticeConfig.xml");
+            PWAPPv2.Source.Config.Configuration universalConfig = new PWAPPv2.Source.Config.Configuration(".\\Config\\UniversalConfig.xml");
+
+            PWAPPv2.Source.API.PWApiConnection pwApiConnection = new PWAPPv2.Source.API.PWApiConnection(practiceConfig, universalConfig);
+            Assert.IsNotNull(pwApiConnection);
+
+
+            Assert.IsFalse(pwApiConnection.CheckForUpdate());
+        }
+    }
+}