fixed #135: rewrite set_tikz_opts() so I do not miss line breaks in \documentclass
fixed #135: rewrite set_tikz_opts() so I do not miss line breaks in \documentclass

fboehm/labnotebook,fboehm/cboettig_site,fboehm/labnotebook,fboehm/labnotebook,antass/labnotebook3,antass/labnotebook3,fboehm/cboettig_site,fboehm/cboettig_site,fboehm/labnotebook,fboehm/labnotebook,antass/labnotebook3,fboehm/cboettig_site,fboehm/cboettig_site,fboehm/labnotebook