Updated to 1.0.4-SNAPSHOT

- Updated Bukkit dependency to 1.6.4
- Changed 'bukkit-repo' to official repository URL.
- Changed 'lore.obtain' to 'lore.join.obtain'
- Changed 'lore.message' to 'lore.join.message'
- Added ability to give Lore books upon respawning.
- Added 'lore.respawn.obtain'
- Added 'lore.respawn.message'
- Added 'respawn-message' section to config.yml
- Removed Metrics support
- Removed logging of players receiving books when joining. (Will not log
  upon respawning either).

Signed-off-by: Steven Downer <grinch@outlook.com>