Make Explainer standalone (no plain_printer requirement)
test HashFromBlock
Test the HashFromBlock class
Refactor HashFromBlock tests
Merge pull request #4 from kejadlen/feature/ignore-logs

Ignore log files
Merge branch 'feature/tests' of git://github.com/kejadlen/vimprint into kejadlen-feature/tests
rm `test/helper` and require `minitest` directly
sketch out a roadmap

fixes #3
Merge remote-tracking branch 'upstream/master'

Conflicts:
	.gitignore