Challenge log needs a bit of reworking

[Ryans]

Mostly good ideas, but this is the best one.

But it needs to be four commendations. Some of us are so awesome that we get three commendations from a single duty roulette, and if the reward includes exp we'll lose out on that if we're on a level 50 class.

Receiving commendations would be a bad choice to add. Adding something that you have no control over isn't in the nature of the challenge log. I understand that 3 or even 4 commendations in a week isn't a lot, but there is no way to guarantee that progress throughout the week unlike every other challenge.