Bugs:
No backdrop displayed in XFCE4
   - Kill xfdesktop
   - Or write to named/identified window
   - Or use appropriate API?
Loops possible in binding code
Orbit refs don't seem to work in terminator { sun {} } section
Sunpos orbit is massively astronomically inaccurate
doc/examples/all-projections crashes on exit with double-free

Features:
Double-check licensing for plugin interface (LGPL?)

Outline content and data
Fix edge conditions on projections
Give projections hints on pixel sizes?
  (Or do something to work out approximate scaling incrementally)

Labels
More projections
 - conical
 - Peters?
 - Dyson?
Code to help parsing subsections (with plugins)
Check that headers are installed correctly
Version handling for plugins
Geodesics
magellan-config script/tool?
X root plugin - allow writing to a named/identified window
Multi-threaded rendering

Better debug reporting on failure to bind sections (c.f. mdisplay.cc/bind())
Profiling to work out where rendering cost is
Do valgrind checks
