Quoting Philippe Gauthier <philippe.gauth...@deuxpi.ca>:
it's a festival of imported third-party code that is in different stages of being available in Debian.
That is, unfortunately, a problem with many web applications. Did you prepare a list of the necessary libraries? I would try to help filing RFPs/ITPs for missing libraries and checking versions of those already present in Debian. I would also package JS libraries, if that helps, but not PHP stuff, because I don't know anything about it. Cheers