Add unit tests to proove that code needed to change !

[Smurf-IV]

Smurf-IV Modifications

• Fix the links in this page
• Make the MathML library target different frameworks
• Up the version to 1.1.0
• Remove the need for the .net3.5 DLL's to simulate .Net 4 and above classes.
• Add NuGet Distro
• Fix placing a "Star" (Multiply) in front of variable when they are in bracketts. i.e. Math.Sqrt(c*b)
• Tidy-up usages of packages
• Reuse library in included Demo app
• A more unit tests that show the fixes now work.