Fix typo in option `-enable-auto-highlight`, extract constants for options, handle `-parse-timeout` in optionLength().
(#11) Finalise deployment to Maven central.

* set org.sonatype.oss.oss-parent as parent POM
* configure JavaDoc to use Maven output for the doclet
* re-attach JavaDoc to build process and attach javadoc-jar
* Remove raffael.ch repositories