update to Bukkit 1.8-R0.1
still have to include the bukkit public repository because DroxPerms has
an invalid pom.
indicate the revision of metrics is 8.
update to latest VaultAPI version and set minor version back to 0 for
next release.
update PEX to 1.23
fix convert command to take initial balance into account.
Merge remote-tracking branch 'upstream/master'