[WAR] Making the Mastering the Beast trait available at level 50

[dspguy]

This is not WAR exclusive problem, neither tank exclusive.

- PLD, the "magic tank", starts using spell in its rotation at 68, with mobility at 74
- DRK has TBN at 70 and until recently he used to have 2nd AoE combo at 70+
- BLM is regarded as "trash until max level"
- DNC gets DP at 60.
- WHM gets lilies at 52, but they're DPS loss up until 74
- Most non-tank jobs gets their AoE way too late

The list goes on. Only few classes have solid core at 50-60, and WAR is one of them. Hopefully 7.0 finally addresses this problem for every jobs.

The journey shouldn't be the destination. All of these jobs are very playable before they have their full kits.