Juked 

Juked has ~50 cooldowns being tracked on the main bar and an optional priority bar where higher priority spells are displayed(interrupts by default).

Formerly known as "Interrupt Bar modified by Robrman"

CHANGES:
-Updated for MoP, removed obsolete spells, haven't added the new spells yet(v1.3.9)
-Cleaned up the code a bit(v1.3.8)
-Updated for 4.3, added some new spells(v1.3.7)
-Fixed Hidden off smart on (spell icons were stacking)(v1.3.6)
-Some of the cooldowns may have changed, if they have and I didnt fix them please let me know.(v1.3.5)
-Fixed for 4.2, added shadowfury, fixed cloak of shadows and combat readiness CD(v1.3.5)
-Cleaned up some of the code(v1.3.4)
-Fixed moving the frames(v1.3.4)
-Fixed spell reflect cd(v1.3.3)
-Updated for 4.1(v1.3.2)
-Fixed some issues with profiles, if you find one please report it(v1.3.1)
-Added profiles, may still need work - feedback appreciated as always(v1.3.0)
-FINALLY added a GUI for the options. Use "/juked gui" or "/juked opts" or "/juked config" (v1.3.0)
-Added Silencing shot to be reset with Readiness(v1.3.0)
-Added Readiness resetting Scatter Shot and Deterrence, may be incomplete(v1.2.9)
-Cleaned up some of the code, fixed some errors with repositioning(v1.2.8)
-Added individual locking, hiding and smart modes, still possibly buggy(v1.2.7)
-Fixed moving, probably still some work to be done there(v1.2.7)
-Added /ib smart <barID> and /ib hidden <barID> (v1.2.7)
-Cleaned up the help menu some mode, added /juked config to show the current values(v1.2.6)
-Added "/juked growleft" to make the icons grow left from the anchor(v1.2.6)
-Cleaned up the help menu a bit, feedback is appreciated(v1.2.5)
-Added scaling for main bar and prio bar individually(v1.2.5)
-Fixed possible problem with Gnaw if used by a transformed ghoul (Thanks Damnationx)(v1.2.4)
-Fixed Death Coil cooldown to account for Warlock 4 piece bonus -30 seconds (Thanks Damnationx)(v1.2.4)
-Fixed cooldown timer restarting (if same CD is popped, restart timer. Thanks Damnationx)(v1.2.3)
-Added Inner Focus(v1.2.2)
-Added /juked prioonly this will ONLY display cooldowns for spells marked with prio=true (v1.2.1)
-Added noCD option to disable the numeric cooldown from Juked(omnicc, etc will display CD)(v1.2)
-Fixed some cooldown durations(Thanks Sazalolz for pointing it out)(v1.2)
-Externalized the spell table(Thanks Sazalolz for the suggestion)(v1.2)
-Bug fixes(v1.1.7)
-Added test for all modes(v1.1.6)
-Renamed to Juked(v1.1.5)
-Fixed scaling(v1.1.4)
-Fixed test(v1.1.3)
-Fixed prio bar locking(v1.1.3)
-Fixed test(v1.1.3)
-Added a fix for some versions of omniCC(Thanks Bc for testing)(v1.1.6)
-Fixed Rebuke spell ID(v1.1.6)
-Can now be accessed from /juked /jd and /ib(kept this cause i kept typing it by accident)(v1.1.6)
-Added the option to grow the bars upward from the anchor (1.1.6)
-Spell priorities(v1.1.1)
-Most relevant arena cooldowns tracked
-Added "Smart" mode which only displays cooldowns once they've been used, in the order they were used. If used with Hidden mode, they realign to the anchor.

How to:
Set number of columns for bar 1 (main bar) to 5
/juked cols 1 5

Set number of columns for bar 2 (prio bar) to 12
/juked cols 2 12

Put all cooldowns on one line for bar 1(main bar)
/juked cols 1 0

If you think something else should be added to the how to command examples, post in comments.


The image should explain how the different modes work.
My suggestions:
Hidden on + Smart on for BGs
Hidden off + Smart on for Arenas

Adding spells yourself is fairly straightforward, just edit the lua file.
I've spaced it out to one spell per line, should make it easier for most people to modify. It is not currently possible(to my knowledge) to track Smoke bomb as it does not cause a combat log event. I'll add it if/when I find a viable way of tracking it.

Tested by Robrman and Lexk but there may still be bugs. If you find any, just post in the comments and I'll fix them.
Inspired by Kollektiv's InterruptBar.