iProfessions

- It is now possible to set a double (0.3, 0.5, ...) for reward and price instead of just int (3, 10, 15)
- Add the dropItem skill.
- Add the /plist command to see online players of a profession.
- Add the linked_group field for profession, players who learn the profession will, also, be added to the linked_group. And when they forget the profession, they are removed from the group.
- Correct the bug when your money is taken even when you don't have free space to learn a profession. (Greedy plugin)

You have to delete the lang.properties files and generate a new one by reloading the plugin !