CCWatcher is an addon to keep track of all crowd controls on all units. Mainly target at keeping track of crowd control in the arena so you know when time time the next and watch diminishing returns of them. Still in the beta stage but should be usable without getting errors. If you find any bugs or have suggestions for improvements please post a ticker or a comment on this page.
Features:
-Tracks all normal cc.
-Tracks stuns
-Tracks silence
-Tracks spell school lock downs
-Can track duration on all cc, even cc you didn't cast yourself.
-Can track diminishing return on all cc, even cc you didn't cast yourself
-You can turn on/off if you want to only watch cc'ed opponents or all.
-Can display who casted the cc.

Know bugs:
-The diminishing return counter can bug when there are more of the same class on the same team casting the same cc.
-Doesn't track diminishing returns/caster of random procs like mace stun.
-Doesn't track diminishing return of traps.

Usage:
Click the minimap icon with a sheep icon or write "/ccw gui" to bring up the config menu. Then press the "Frame" expander to change the possition of the bars and some other options. That will also show test bars. In the subcategories can you change the look of the normal frame and your target's frame.