Change length of divider in text formatter to span notes
Merge pull request #66 from TSFoster/list-divider-length

Change length of divider in text formatter to span notes
Add Toby Foster to CONTRIBUTORS
Merge pull request #65 from TSFoster/list-last-sheet

Add `-` marker for last sheet on `t list`
Specify all dependiencies in gemspec and upgrade some gems

* Fix compatibility with sequel 4.0.0
* Upgrade rspec and fix deprecation warnings
* Manage all dependencies through gemspec
Remove refernces to rdoc
Fix small error in README