Merge pull request #8 from ddmps/master

Added command testeu
Add help.
Supybot seems to lowercase commands.
"True" not "true" in python.
Convert png to RGBA if it is not already.
Update tiles with yellow flag and endzones.
Preview yellow flag and endzones.
Fix portal entrances not being available in all methods.
Preview respawn tiles as red and blue balls.
Changed listmaps to order by popularity