add support for Solution Format 12.00
Normalize newlines in *.cs
Add .NET 4.5.1 target framework.
Update NuGet to version 2.7.2

NuGet.Core version 2.7.41101.299
Fix project build error after installing Fody NuGet package.

The Fody NuGet package has an install PowerShell script that
directly updates the MSBuild project from the
Microsoft.Build.Evaluation.ProjectCollection.GlobalProjectCollection
to set a FodyPath property that defines where the Fody.targets
file should find the main Fody assembly.

Extended the support added for the Microsoft.Bcl.Build NuGet package
so project properties added by directly updating the MSBuild project
from the GlobalProjectCollection are added/updated in the actual
project file.

No support for updating properties that exist multiple times inside
a project (e.g. OutputPath).
Fix error when installing Fody addins with NuGet.

Implement EnvDTE ProjectItem.Save()
Support LocalPath property in an EnvDTE.ProjectItem.Properties.
Support LocalPath in EnvDTE.Project.Properties.
Fix error when installing MVVMLight NuGet package.

Append backslash to project directory name when returning
the full path from EnvDTE.Project.Properties.
Fixed SD-1931 - Dragging Pointer from toolbox to WPF designer throws exception.
Support for "Bring Item To Front / Send To Back" ContextMenu ...
Fix NuGet packages showing as installed in solution.

NuGet packages that were still in the packages folder but
not installed in any projects are now not shown in the
Installed tab when managing NuGet packages for the solution.
Fix old NuGet packages not being removed on updating.

Updating to a new NuGet package or installing a new NuGet
package with the old one still installed would leave the
old unused NuGet package in the packages folder.
Remove unused code.
Adjust some Test's, fix ViewCommands.cs (hint from linquize)
ClassBrowser: Context menu to edit references of a project.
ClassBrowser: Fixed some problems with COM and project references.
ClassBrowser: Fixed some more problems in reference handling.
Small optimization for GlobalAssemblyCacheService.
Next attempt to fix the double-member issue in ClassBrowser.