Upgrade to new Visual Studio

.gitignore

@@ -182,3 +182,5 @@ UpgradeLog*.htm
 
 # Microsoft Fakes
 FakesAssemblies/
+
+.vs/

BalExtensionExt.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 2013
-VisualStudioVersion = 12.0.30501.0
+# Visual Studio 15
+VisualStudioVersion = 15.0.27130.2027
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wixextba", "wixstdba\wixstdba.vcxproj", "{41085A22-E6AA-4E8B-AB1B-DDEE0DC89DFA}"
 EndProject
@@ -14,6 +14,11 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WixBalExtensionExt", "wixex
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "bafunctions", "bafunctions\bafunctions.vcxproj", "{EB0A7D51-2133-4EE7-B6CA-87DBEAC67E02}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution", "Solution", "{0A4878CF-0180-4A32-9705-7C30DA4463C0}"
+	ProjectSection(SolutionItems) = preProject
+		.gitignore = .gitignore
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -81,4 +86,7 @@ Global
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {15BEE235-E79E-4814-908A-B9216FA754EC}
+	EndGlobalSection
 EndGlobal