Refactor to api connections. Update Checker.

UnitTests/ConfigTest.cs

@@ -0,0 +1,21 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using PWAPPv2.Source;
+
+namespace UnitTests
+{
+    [TestClass]
+    public class ConfigTest
+    {
+        [TestMethod]
+        public void TestGetPracticeConfigs()
+        {
+            PWAPPv2.Source.Config.Configuration configuration = new PWAPPv2.Source.Config.Configuration(".\\Config\\PracticeConfig.xml");
+            Assert.IsNotNull(configuration);
+
+            string apiKey = configuration.Get("pwapiid");
+            Assert.IsNotNull(apiKey);
+
+        }
+    }
+}