http://hackerxu.com/2015/08/31/spacemacs.html?from=singlemessage&isappinstalled=1
http://m.blog.csdn.net/blog/lujun9972/46002963
http://orgmode.org/manual/Extending-ODT-export.html
(setq org-odt-convert-processes '(("LibreOffice" "soffice --headless --convert-to %f%x --outdir %d %i")))
http://foobarnbaz.com/2013/08/02/awesome-mindmaps-using-org/
golden-ratio
