Texts between manitems now possible.
Added a preliminary version for the comment syntax.
MOre examples.
Removed Labels, renamed FunctionLabels to labels.
Merge branch 'devel' of https://github.com/fingolfin/AutoDoc

* 'devel' of https://github.com/fingolfin/AutoDoc:
  doc: tweak tutorial a bit, link to comments chapter
  doc: add chapter on doc comments, based on Sebastian's notes
  makedoc.g: change AutoDoc() call to use options
  doc: expand tutorial a bit
  magic: gapdoc.main may already have ".xml" suffix, deal with that
  doc: complete (mostly) the AutoDoc() documentation
  cleanup
  magic: derive bookname from package_info.PackageDoc.BookName
  magic: rename autodoc.files_to_scan to autodoc.files
  magic: allow passing optional args to AutoDoc() via options
  magic: refactor a bit, add new func AUTODOC_FindMatchingFiles
doc: refine autodoc comments chapter
doc: switch comments chapter to use subsections
doc: add subsection labels to comments chapter
doc: more tweaks
doc: change AutoDoc() docu into a doc comment