added ability to upgrade a huntbot trait to the next level

[sfk-steelsong]

owo upg radar {lvl / level} - adds the amount of ess remaining in this current level for the given trait (sets to 0 xp in next level)

also added a few aliases for traits (xp for exp, ess for gain)

bonus: removed a rogue } that snuck into the response.

[ChristopherBThai]

Needs a try/catch but I can add this.

[sfk-steelsong]

in my defense I wrote this over a year ago and you changed how db connections work since then, haha