Do you still need Clique or is clickcasting built in finally?
Hi! There are many very useful addons but the one which is really mandatory (at least if you play a buff/healing hybrid class like druid) is Clique to cast/buff/debuff with a single click on a unit frame.
Is this still not implemented by Blizzard in WoD and do you still need Addons for it?
Without addon you need a macro for every spell.
No, click-casting still requires an addon to do in Warlords.
As an aside, I don't think click-casting really has the critical mass that other addons like PowerAuras, Omen, or oQueue had to essentially force Blizz to add similar features. I personally prefer mouse-over keybinds when I heal.