- added a section to the intro vignette about non-English letters
- slightly darker header and foldmarks in default style (maintainersDelight.lco)
- added vignette describing parameterized letters for mass mailings
- reduced mandatory YAML metadata header items to 'output' (dispensed with 'opening', 'address', 'author')
- introduced continuous integration service Travis CI
- protected path to default lco in LaTeX file against breaking at whitespace on windows
- renamed maintainers_delight.lco to avoid pandoc problems with underscores in paths
- intial version based on linl version 0.0.2 but using KOMA-Script class 'scrlttr2' instead of LaTeX class 'letter'