* Moved `source.Files` to its own package, thus the type is now `files.Files`.
* Moved much of the location functionality from pkg `source` to its own package `location`.
* Fixed space issues with expressions
* Alias can now be an arbitrary string
* Alias can now be an arbitrary string (fixed)
* Alias now automatically applied to expressions
* Ignore .run
* Fixed issue with TestRun not logging correctly to testing.T
* Fiddling with sqlite3 temp file closing
* Re-enable tests
