Fix dependency versions so the right Prerequisite can be injected

The previous behavior would add a Dependency, which is only applicable
if the VSIX you're depending on (i.e. Merq) is NOT a product component.

Since Merq ships with Xamarin, this caused an error saying you had to
install Xamarin instead.

The updated VsixDependency will properly inject a Prerequisite instead,
and do the right thing via Willow automatically, installing only the
Merq component that Xamarin workload also consumes.

Author: kzu

src/VisualStudio/NuGet.Packaging.VisualStudio.15/project.json

@@ -4,7 +4,7 @@
     "Clide": "3.0.107-pre",
     "Clide.Installer": "3.0.107-pre",
     "GitInfo": "1.1.32",
-    "Merq": "1.1.17-rc",
+    "Merq": "1.0.0-rc",
     "Merq.Async": "1.1.17-rc",
     "Merq.VisualStudio": "1.1.17-rc",
     "Microsoft.Build": "15.1.548",
@@ -16,7 +16,7 @@
     "MSBuilder.DumpItems": "0.2.1",
     "MSBuilder.Introspect": "0.1.5",
     "MSBuilder.ThisAssembly.Project": "0.3.3",
-    "MSBuilder.VsixDependency": "0.2.8",
+    "MSBuilder.VsixDependency": "0.2.11",
     "MSBuilder.VsixInstaller": "0.2.13",
     "VSLangProj150": "1.0.0",
     "VSSDK.ComponentModelHost.11": "11.0.4"

src/VisualStudio/NuGet.Packaging.VisualStudio.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
-VisualStudioVersion = 15.0.26403.3
+VisualStudioVersion = 15.0.26510.0
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NuGet.Packaging.VisualStudio", "NuGet.Packaging.VisualStudio\NuGet.Packaging.VisualStudio.csproj", "{9617EDCD-23BB-41EA-827D-F5729D45B0AF}"
 EndProject

src/VisualStudio/NuGet.Packaging.VisualStudio/project.json

@@ -2,12 +2,12 @@
   "dependencies": {
     "Clide": "3.0.107-pre",
     "GitInfo": "1.1.32",
-    "Merq": "1.1.17-rc",
+    "Merq": "1.0.0-rc",
     "Microsoft.VisualStudio.Shell.14.0": "14.3.25407",
     "Microsoft.VisualStudio.Shell.Interop.11.0": "11.0.61030",
     "MSBuilder.ThisAssembly.Project": "0.3.3",
     "NuGet.VisualStudio": "4.0.0",
-    "PropertyChanged.Fody": "1.52.1",
+    "PropertyChanged.Fody": "1.53.0",
     "VSSDK.ComponentModelHost.11": "11.0.4",
     "VSSDK.DTE.8": "8.0.4",
     "VSSDK.TemplateWizardInterface": "12.0.4",