Fixed pom.xml relative directory reference.

The Ant script now copies the JAR the correct directory:
~/projects/server/plugins/VirtualPlayers.jar

This is a Test Server that is shared by all projects.
Fixed cmd bpe

./dc <vp> bpe <block> <location>

Fixed the BlockPlaceEvent command.

This cmd works in v1.5.3

But it breaks in v1.5.6

Fixed in v1.5.10