Make sure library can be tested along with other skippy libs

[thomthom]

Right now you have to add the root of the project to the load path. Which will then potentially cause conflict with other skippy libraries under development.

Need to find a better pattern for this. But this is something that also needs to be worked on in Skippy itself.
For instance, being able to use namespaces other than SkippyLib: thomthom/skippy#19

Then this project can rename the root namespace to SkippyTTLib or TTSkippyLib. But there is still the issue of the include paths.