There was a patch for D3 yesterday that changed a ton of changes to skill mechanics and gameplay. Many "underused" skill were given damage buffs and the Crusader finally got 30% damage reduction (same as the Barbarian and Monk).
The patch notes that were posted through the battle.net client were out dated and wrong in many places (for instance, it says the Crusader got 15% DR instead of 30%).
Anyway, the final patch notes can be found here:
2.0.5 Patch Notes-420
