Update selenium to 3.8.0 version for tests

Author: rosolko

IntegrationTests/IntegrationTests.csproj

@@ -42,8 +42,8 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Runtime" />
     <Reference Include="System.Xml" />
-    <Reference Include="WebDriver, Version=3.7.0.0, Culture=neutral, PublicKeyToken=null">
-      <HintPath>..\packages\Selenium.WebDriver.3.7.0\lib\net45\WebDriver.dll</HintPath>
+    <Reference Include="WebDriver, Version=3.8.0.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\packages\Selenium.WebDriver.3.8.0\lib\net45\WebDriver.dll</HintPath>
     </Reference>
     <Reference Include="xunit.abstractions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c">
       <HintPath>..\packages\xunit.abstractions.2.0.1\lib\net35\xunit.abstractions.dll</HintPath>

IntegrationTests/packages.config

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="AngleSharp" version="0.9.9" targetFramework="net452" />
-  <package id="Selenium.WebDriver" version="3.7.0" targetFramework="net452" />
+  <package id="Selenium.WebDriver" version="3.8.0" targetFramework="net452" />
   <package id="xunit" version="2.3.1" targetFramework="net452" />
   <package id="xunit.abstractions" version="2.0.1" targetFramework="net462" />
   <package id="xunit.analyzers" version="0.8.0" targetFramework="net452" />