Getting builds running on Win 8.1 with VS 2013 and fixing two bugs.

* VS 2013 has eliminated MSBuild-integrated package restore, so removing nuget targets and bundled .exe
* The ILMerge build-step assumed no spaces in the command - fixed.
* When an injected type inherited from a non-injectable that had a non-default constructor, the reflection loader would fail.  This was not correct, and has been resolved.