Some cleanup to fit 80c (yeah, not really).

git-svn-id: svn+ssh://svn.code.sf.net/p/mcomix/code@875 ef8490bc-f317-4725-81ed-e95a9aca1bcf
Reflow 'Edit commands' UI elements, as by Ark's suggestions.

git-svn-id: svn+ssh://svn.code.sf.net/p/mcomix/code@876 ef8490bc-f317-4725-81ed-e95a9aca1bcf