Original commit message from CVS:
major rewrite of the spider.
Now uses GstSpiderConnection to track current connections and remember the way they're plugged.
Advantages of this approach:
- function prototypes are now much cleaner.
- Allow event propagation (EOS) to elements that are not connected but plugged.
- Allow deconstruction of plugged pipes. (not implemented)
Disadvantage:
- I screwed up naming (always get src and sink the wrong way). It's very inconsistent in the gstspider.[ch] files
- a little more time and memory are needed to manage the structs