Note that the player cannot currently already be in another faction; if they are, you'll need to /f kick them first. Also note that if the faction isn't open (with no invitation required), the player isn't invited, and you don't have the factions.join.any permission or have admin bypass mode on, the attempt will also fail.
Also, added new log method which accepts arguments (like the msg method) and cleaned up /f permanent text a little.
Also, a couple more minor bugfixes are included for /f home payment giving the wrong message, player/faction descriptions being wrong for console messages, and potential NPE in new faction admin promotion routine if faction was permanent with no current admin.
New permissions:
factions.admin.any - allows use of /f admin on any player in any faction
factions mod.any - allows use of /f mod on any player in any faction
factions.join.any - allows player to join any faction, bypassing invitation process for closed factions (the same as players with /f bypass enabled can do)
Fix for rare NPE when Spout territory info update is run and affected player disconnects at precisely that moment
Clarified "cannot attack neutral faction" messages to indicate enemy status is needed
Updated Bukkit lib to correspond with CB 1337
Brettflan
Olof Larsson