correctly use  as range start
Document FP
add a travis.yml config
Merge pull request #3 from krtek4/bugfix

correctly use $min as range start
Merge pull request #4 from krtek4/documentation

Start documenting the various parts
Add coverage information to Travis
ensure that the generator is valid before calling next
Add badge in README
Merge pull request #6 from krtek4/travis

Configure Travis CI
Merge pull request #5 from krtek4/bugfix

ensure that the generator is valid before calling next