TODO
====

 - add base server addons (9 modules missing). Understand why they are missing.
 - missing deps for the gtk client (hippocanvas)
 - missing _thread error on py2.7 (dateutils 1.5 instead of 2.0!)
 - allow a different DOWNLOAD_URL
 - stop on error behavior for external programs
 - honor offline option (-o) in new auto update capability for addons
 - insecure mode for hg??
 - support wsgi deployment
