CLI refactor to remove process.exit(), file not found now a regular error message, updated formatters to handle this case
Merge pull request #160 from ilyavolodin/no-self-compare

Rule: no-self-compare (fixes #159)
Rule: No multiline strings
Merge pull request #133 from ilyavolodin/no-multiline-str

Rule: No multiline strings. (fixes #132)
Fixing no-self-compare