Bukkit

- Fixed:
    - Using Economy leading to a crash because the formatting of the "success-message" didn't work out correctly
    - Permissions for Flights not working correctly when using Signs which lead to players being rejected a Flight via sign even though they had sufficient permissions

- Added:
    - Sign-Protection for all DragonTravel-signs
         => Signs cannot be destroyed by a user without the new permission dt.admin.signs

IMPORTANT: Only works with CB 1.6.2-R0.1 & CB1.6.2-R1.0