fix #610, fix #602, fix #605, Fix #544, Fix #612

[dgarijo]

Added the following:

• add support for schema:creativeWorkStatus.
• Sort NS table (Fix Sorting namespaces table #610)
• Checked equivalentClass works appropriately.
• JFileChooser in GUI (JFileChooser won't show any files on new Mac OS #602) (except a minor one for browsing folders)
• Fix Command line error when GUI required #605 about the main gui when saving without the --rewriteAll option.
• If multiple labels (skos:prefLabel, rdfs:label) are provided, now they won't be duplicated. Fix Wrong label if multiple labels are provided #556
• Added funding and funder information.
• Intro section (new property) (Fix Properties for generating introduction and description sections #544, Fix How to supply custom texts (introduction/description) through command line? #612)