mocha tests
throw error on unknown format
handle parentheses and tags
better output on first testcase
version bump
allow custom format function
test for custom format function
correctly list supported formats
accept --help for usage information
version bump
fix npm test
add Linus as contributor
test comments
test exposed list of formats
unicode support
version bump
Merge pull request #3 from LinusU/patch-1

Quite a few improvements