Prevent opening and parsing files which haven't been modified since the last time that the render was done
Respect the markall parameter
Add the new function to the synthetic test
extra character ?
Default value is compatible with the expecteed result in fetching the region for a path
Do not use the newer than check on windows since apparently minecraft will not force a timestamp update on the file when they are written until it's closed.
Pythonic or
Import the platform
Rewrote image optimisation stuff.

The old one was broken anyway.
Handle UUID player files semi-nicely in POIgen (14w10a+, 1.7.6+)
Use Mojang's session API to get usernames from UUIDs
Merge #1055 -- Prevent opening and parsing files which haven't been modified since the last time that the render was done.
Print a limit=1 traceback if failed to build
Merge PR #1055
general fixes for min/maxzoom, documentation cleared up

hopeful fix for #1086
Merge PR #1079 -- Handle UUID player files semi-nicely in POIgen
Catch some additional UUID lookup errors from urllib2
Add a small message stating where the render is and how to open it
Fix ServerAnnounceObserver typo
added rendercheck mode 3, the identity function of rendercheck modes!