Patch for Issue #14 & trivial fix in MSBuildParser

* Modification for "Any CPU" platform - https://connect.microsoft.com/VisualStudio/feedback/details/503935/ for more detail see Issue #14
* Fixed variable of variable in the 'simplify' section e.g.: ($(var:project):project)
added testing tool - "Evaluating Property"
fixes for nested variables 271874d