modularised plotting script. Now generates sky coverage plots for opposition new moon for 2013 (both semesters).
zope.cachedescriptors decorator call now doesn't override built-ins (grr zope). Fixed lost-password url to new CADC page.
Merge remote-tracking branch 'origin/track' into track
reduced alpha of error ellipse, changed colour, easier to see faint sources in the ellipse.