Merge pull request #127 from NuGet/nuget-next

NuGet 2.7 Docs
Updating 2.7 release notes with contributor names
Correct a typo in a contributor's name
Adding the -Force parameter note for Uninstall-Package
Merge pull request #128 from NuGet/nuget-next

Add a reference page for the Extensibility APIs.
added NuGet Concierge to the ecosystem page
Merge pull request #129 from xavierdecoster/patch-1

added NuGet Concierge to the ecosystem page
Fixed the Concierge link
Making the 2.7 release notes final, adding known issues
Fixing an escaping bug
Added a note that VS needs to run as Admin to uninstall NuGet
Added Link for http://hotnuget.com/ in site/Docs/Reference/Ecosystem.markdown
Added Link for http://hotnuget.com/ in site/Docs/Reference/Ecosystem.markdown
Added reference content for package restore and TeamBuild.

- Added section for wrapping the new package restore in an MSBuild project
- Added new topic with a walkthrough that shows how to setup Team Build and package restore
Incorporated feedback on the package restore with Team Build topic.
Merge pull request #131 from doobiwan/doobiwan-docs-hotnuget

Added link to HotNuget.com
Merge pull request #132 from terrajobst/master

Added reference content for package restore and TeamBuild
Use inline links
Use inline links
Fix an inline link