Add iLevel restrictions to Alliance Roulette

[Havenchild]

1. People may be levelling a job and their level is too low to access the next tier;
2. Despite being over levelled and willing to unlock the next tier, one may not have reached the point in the MSQ that allows them to unlock the next tier of raids (along with the tome gear);
3. ftp are limited to CT and HW raids so that eliminates 3 out of 5 series
4. someone may be queuing CT specifically (relic weapon quest or just because)
5. Pure “luck”. Even if the whole team is in 600+ gear and has everything unlocked, roulette could still take you to CT.

Just one more thing here:

- CT is also the only raid that you run into naturally (cause of MSQ req). All others require you to find and complete a sidequest to gain entry.

I know people that don't have anything but CT unlocked or maybe have Nier but missing Void Ark and Rabanastre.