Use relative paths for filename attribute in class node.
Cleanup.
Add nokigiri to slather.gemspec.
Remove regex to remove commented lines. Not necessary.
Corrected source dorectory handling.

Cobertura plugins need absolute paths for source root directories.
Revert "Corrected source dorectory handling."

This reverts commit 1d87e2b4dc2420fea9cc0f69619a89dc989e5fd6.
Update README.md
Using roote directory for entry in sources node.

Update spec and fixture.
Merge branch 'master' of github.com:tarbrain/slather