Updated NuGet.exe,

in order to troubleshoot why the automated deployment to NuGet.org no
longer works. From experience, this can be caused by breaking changes in
the NuGet.org service, and updating NuGet.exe can solve this.
Incremented patch version,

in order to troubleshoot a NuGet.org package deployment issue.
Added support for floating-point numbers to RangedNumberGenerator class.
Added Facate Tests verifying the support of floating-point numbers when using the RangeAttribute class.
Incremented patch version,

in order to indicate a bug fix. This resolves #149
(https://github.com/AutoFixture/AutoFixture/issues/149).
Added OSS licence
Changed the licence URL in all NuSpec files.
Added Questions section

because people seem unsure where to ask questions.
Added testimonial from Florian Hötzinger.
Changed local link to testimonials,

since it seems that GitHub auto-generates local anchors from headlines, e.g. "#who-uses-autofixture"...
Added testimonial.
Fixed links in testimonial.
Added testimonial.
Added 'NuGet.config file' specifying the NuGet 'packages' folder path.
Updated projects in AutoFixture.sln to reference xUnit.net from NuGet.
Updated projects in Idioms.sln to reference xUnit.net from NuGet.
Updated projects in AutoMoq.sln to reference Moq, and xUnit.net, from NuGet.
Updated projects in AutoRhinoMock.sln to reference Rhino Mocks, and xUnit.net, from NuGet.
Updated projects in AutoFakeItEasy.sln to reference FakeItEasy, and xUnit.net, from NuGet.
Updated projects in AutoNSubstitute.sln to reference NSubstitute, and xUnit.net, from NuGet.