Upgrade wrapper to Gradle 6
Upgrade to asciidoctor-java-integration 0.1.3
Close #14 coerce GStrings into Strings otherwise JRuby will get confused during method selection
Close #15 Added sourceDocumentName as a property to AsciidoctorTask
Fix readme; kickstart TravisCI once more
Close #16 Property sourceDocumentName should be marked with @Optional
Convert README from markdown to asciidoc
Hmm looks like .adoc should be used instead of .ad
Fix links in README
Add javadoc hotfix plugin as we still compile with JDK6
Add codenarc configuration; tweak codebase to conform to codenarc rules
Apply jacoco plugin for code-coverage
Tweak pom generation given Gradle 1.6 maven-publishing features
Update README with suggestions from @mojavelinux found at #17
Add configuration instructions to include a docinfo file
refactoring

- added missing Copyright note
- generated the ALL_BACKENDS map in a Groovier way
- reordered methods: public first then private (in usage order)
deferring creation of Asciidoctor instance to speedup task creation

- creating an Asciidoctor instance can take many seconds
- creating it in the constructor means that it's already
  run during task configuration
- so even if the asciidoctor task is not run it would take
  that long in Gradle's configuration phase
Add a 'logDocuments' configuration option
   * false by default
   * if true, logs files being processed with "lifecycle" logging level
   * closes #21
Merge pull request #22 from darxriggs/master

deferring creation of Asciidoctor instance to speedup task creation
Merge pull request #23 from melix/doclogging

Add a 'logDocuments' configuration option
close #24 after merging changes manually