Dice/Roll command

Dice command to generate a number between 1 and 6 by default, or by 1 and the target if user specifies one.

Cannot be used in lobby, and specified target cannot be longer than 21 characters.
Merge pull request #345 from Cosym/patch-13

Dice/Roll command
Improve Dice command

Make the command more compliant with DRY and PS style.
UU Suspect Test is over

Re-activate resetted regular UU ladder and delete 
suspect ladder.
Revert "UU Suspect Test is over"

This reverts commit 56046cfd220fc5f64f18a669b9c001b1ad8b3ed8.
Add new events

- Character Fair Jirachi
- Chilseok Jirachi
- VGC Nationals Junior Champion Do Heun's Hitmontop
- Summer Shiny Dialga
- VGC Nationals Senior Champion Seung Heon's Cresselia
- VGC Nationals Master Champion Sejun's Liepard
- Summer Shiny Palkia
- Chief Golgo's Sableye
- Summer Shiny Giratina
Merge pull request #348 from Quinella/master

Fixes Mirror Move so that it uses the target's last move instead of the battle's