Add inverted flag support to TrapDoor. Fixes BUKKIT-3390
Update Bukkit for Minecraft 1.5.2
Move world generator warning to CraftBukkit. Fixes BUKKIT-2565
Updated version to 1.5.2-R0.1 in pom.xml for BETA.
Updated version to 1.5.2-R0.2-SNAPSHOT for development towards next release.
Define EntitySpawnEvent and SpawnerSpawnEvent. Adds BUKKIT-267 and
BUKKIT-1559
Use imports instead of fully qualified class names
Fix Javadoc
Re-add getEntity