[devhelp] (3 commits) Non-fast-forward update to branch wip/misc

[Sébastien Wilmet <swilmet src gnome org>]

The branch 'wip/misc' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  4c2bf9b... parser: fix/improve error messages in parser_start_node_boo

Commits added to the branch:

  34e1182... parser: improve code of parser_start_node_chapter()
  7d1d620... parser: avoid crash if the first element is <chapters> or <
  6ba9508... parser: fix/improve error messages