Update (2016.05.31): V1.11 released! The links are updated! Changes at the bottom!
a few years ago (around 2) I wrote this addon for WotLK (back then it was called Vect, but I have changed my name since (from Verot to Relintai), and I couln't resist renaming the addon :) ).
Unfortunately I never got around releasing it, because I stopped playing wow back then.
Now that I again have the mood for playing (here), I thougth I'll update (or rather "downgrate") it to work on TBC, and also this time around I'll actually release it.
So what is this addon all about?
It tracks Cooldowns, and Diminishing Returns, and displays them as cooldown icons.
It will display you target's, and your focus's cooldowns. (Of course if you don't disable it)
Practicly it's kinda like AESA, but with icons instead of bars.
So to get the full picture, here is an image:

It can sort cooldowns based on groups, and it can also color-code them.
Practicly this means, you can set silences to be displayed first. (Default)
One of the new features is Interruptbar functionality, it works a little differently though, for example if you have two Warriors around you, it will show both Pummels (but only if it's on cooldown, it doesn't have those static icons like Interruptbar).
You can configure almost every visual aspect of it.
Options menu:
Either in Interface->Addons->Rekt
or type:
/rekt
into your chat.
Other stuff:
It contains the combatlog fix, it might fix other addons too.
Combatlog bug: Your combatlog stops displaying anything, and stops sending events to addons. (The addon's fix won't work on the graphical combatlog itself).
Now the TBC addon contains a modified version of TrinketTracker by Schaka His addons on this forum, this means if that addon detects PvPtrinket then it will be detected.
Changes since the last version:
-Now if the server doesn't send SPELL_AURA_REMOVED, the addon will remove the DR from the frames after 10sec + the current dr duration time, instead of flat 25 secs.
Note: if you die while you have a CC aura (stuns etc), the server won't send the message needed, so iy you die in a stun the icon will most of the time just stay there for (default:) 25 secs. If you watch the icon, it feels a lot, that's why I actually thought it was bugged.
-PvP Trinket message: I thought I removed it, but actually I left in the code which gets the server's PvP trinket message.
Full changelog is in the github repository.
Download Links:
Github - TBC version - Zip
Github - TBC version - Source
Github - WotLK version - Zip
Github - WotLK version - Source
Enjoy