More graceful zsh completion.
More graceful zsh completion.

* Check if `compstate' is defined before setting it in zsh-ccomp
* Check if `compdef' is defined before loading wcomp

This is tested against with zsh 4.3.{4,6,9,10,17}. It *should* work with
zsh >= 4.3.4

allcatsarebeautiful/fasd,Vifon/fasd,Neki/fasd,alphapapa/fasd,dankilman/fasd,clvv/fasd