Edit: I will do my best to keep this up-to-date. Any feedback, help and corrections are appreciated.
The latest series of patches on the Return of Reckoning server aim to fulfill the original design goal of melee healers and make front-line healing viable. These changes drastically alter the way the two careers are played, including spec, tactic and stat changes. Since they need to be fine-tuned for them to be viable without being overpowered the changes are ongoing and patches are applied daily. This combined with a new way of thinking when it comes to the playstyle of these two careers and easily confused aura names makes many players scratch their heads and rage in exasperation at the patch notes.
Rage no more! Here comes an up-to-date, albeit slightly condescending guide aimed at making these changes understandable to the dummies (I say this lovingly, really).