Update to version 1.4.1 #54

Update version to 1.3.2 #50

Added missing copyright headers #43

Fix broken build and fixed deployment to sonatype #30

- changed deployment URL to correct one
- deploy script deploys now to sonatype
- github actions do now execute build before buildDist so
  no longer failing
- upgraded version to 1.3.1 so it's clear that the build and the
  jars have changed (even when they are only signed now)

Release 1.3.0 #37

- changed version to 1.3.0
- fixing some gradle issues

Delete .travis.yml

Drop travis file #34

Upgrade to asciidoctor pdf 1.5.3 depenendcies, closes #29

Simplified deployment #25

- now only variable "distVersion" must be set inside build-maven.gradle

Changed bintray version to 1.0.x #20

Now able to publish signed distribution jars to bintray, closes #7