Fix container detection; sign text

- Containers probably won't ever be below themselves. (Minecraft 1.6:
The Quantum Update?)
- event.getType() returns "player" for normal vaults, pushing line
length over 15 char; reverted to cause.getline(0)
Merge pull request #54 from bezeek/upstream

Fix container detection; sign text
Fix NPE originating in FactionAccountHolder

Help id.startsWith("faction-") realize its truthiness.
(Todo: Convert/clean up old Factions DB records.)
Sketchy chest location for attached signs

Locate chests with attached signs; and fail if no valid containers are
found. Could use a good refactoring.
Merge pull request #55 from bezeek/upstream

Fix NPE originating in FactionAccountHolder; fix attached signs
add getting account holder by raw id
Merge branch 'master' of github.com:MinecraftWars/Gringotts
Revert "Fix NPE originating in FactionAccountHolder"

This reverts commit 82576dc58b6f83519bdceaedd649c3e8e7685c48.
Merge branch 'master' of https://github.com/MinecraftWars/Gringotts

# By bezeek (3) and Justin Kaeser (2)
# Via Justin Kaeser
* 'master' of https://github.com/MinecraftWars/Gringotts:
  Revert "Fix NPE originating in FactionAccountHolder"
  add getting account holder by raw id
  Sketchy chest location for attached signs
  Fix NPE originating in FactionAccountHolder
  Fix container detection; sign text