Thanks to Sniff0r the addon is continued here:
http://www.curse-gaming.com/en/wow/addons-3691-1-universalstunanddebuffhelpercontinued.html
I suppose everybody should use the latest version there, since I stopped the development :)

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Since I am already starting to play twinks I decided to change HunterStunAndDebuff Helper into a universal version which supports all stuns and debuffs of every class. (some languages and skills are still missing)

commands:

/ush config
to set the activation,scaling,position and duration of all bars with new sensational user friendly buttons ;)

Button Info:
Far left button: Toggle Activation (off) -> (only if target matches combat log event) -> (on)
Left button: Toggle Scaling (0.5) -> (0.6) -> (0.7) -> (0.8) -> (0.9) -> (1.0)
Right button: increase duration of skill by 1sec
Far right button: decrease duration of skill by 1sec

/ush setbar [id] [notyetimplementedspell]
set the Spell for Bar id to whatever you like (for not yet implemented classes)
for example:
/ush setbar 1 Frost Nova
/ush setbar 2 Sheep
etc.

/ush lock
finish configuration

/ush load
initialize all bars with the class default template (use this if you upgrade from a previous version!!!)

advanced additional configuration
to force a reset of a bar (if you reapply a debuff) you unfortunately have to replace your button of this spell with the following macro:
/cast [spell_with_rank]
/ush start [spell]

exp.: Macro for Serpent Sting
/cast Serpent Sting(Rank 1)
/ush start Serpent Sting

(note that this will start the bar even if the spell is resisted, out of range, not ready yet etc.)

UniversalStunAndDebuffHelper