Fixed OpenTK version in nuspec to prevent updates.
NUnit updated.
NUnit updated.
Merge branch 'no_solution'

Conflicts:
	Kean.Tests/Kean.Tests.csproj
Added IO test and tried to make it work.
Merge branch 'no_solution'
Updated project files.
Merge branch 'master' of https://github.com/cogneco/Kean
Fixed bug.
Fixed zero width no break space skipping in EnumerableExtension.
Merge branch 'master' of https://github.com/cogneco/Kean
Fixed RawRead bug.
Merge remote-tracking branch 'origin/master' into newgl

Conflicts:
	Kean.Tests/Kean.Tests.csproj
	Kean/IO/ByteDevice.cs
	Kean/IO/Net/Tcp/Connection.cs
	Kean/Kean.csproj