Rank-up Percentage [1.7-1.14]

- Updated to support 1.7-1.15 - Added support for PrisonRanksX (1.7-1.14 only)

This plugin now uses a new, custom Metrics system! - Your server will only send the name of the plugin and a confirmation key to the metrics system. - No IPs or other information are logged, except the time of the data being sent. This update is not major, so you do not need to update. I have kept the same version to avoid the automatic update checker requesting you to update.

- Added auto update checker (every 15 mins and operator join) - notifies opped users. - Code optimised - Compiled against 1.13 (still works on 1.12 and lower)