Update dark-emacs
Update abbreviations
Custom link types for papers
Org export customisations
Trial code for imenu with TODOs in Org buffer
Reorganise vc config
Change auto-complete and compilation config
Port Org mode configuration to new exporter

The new exporter has moved to Org core.  Port all configurations
accordingly.  Some notes follow:

1. Export engine renamed: org-export → ox
2. Backend requires renamed: org-e-* → ox-*
3. All backend specific variables and functions renamed:
   - org-export-* → org-* (e.g. org-html-xml-declaration, ..)
   - org-e-* → org-* (e.g. org-latex-classes, org-ascii-bullets, ..)
4. Generic export variables retain the name org-export-*
   (e.g. org-export-dispatch-use-expert-ui,
   org-export-filter-headline-functions, ..)
5. org-latex-to-pdf-process has been renamed to org-latex-pdf-process
7. Guess, export snippets and backend symbols renamed:
   - e-<backend> → <backend>

Look at the diff for more hints I might have missed.