Merge pull request #85 from raistlinthewiz/master

Sync master with develop.
Updated the Readme.md
Update README.md
Trying a tiny-fix for AppVeyor builds.
Added test solutions to MonoGame projects.
Update README.md
Fixed unit-test projects.
Trying to fix lidgren.network bug.
Should fix Lidgren.Network.dll bug.
Should fix nunit.framework.dll bug for AppVeyor.
Update README.md
Merge pull request #86 from raistlinthewiz/develop

Fixed project files for AppVeyor