Add test for empty project.
Skip transitivity failing test.
Another test, and harness improvements.
Fix and enable project template build test.
Add two more tests.
Fix whitespace.
Add generated nuspec tests.
Verify several more nuspec properties.
Stabilize tests.

Tests would randomly fail when the current directory somehow changed while running tests.
Fixes build error produced for empty NuProj.

Enables a modified test.
Merge pull request #3 from AArnott/tests

Add basic project build test.