Don't use an object after releasing it

This restores the ABI. It also avoids nasty issues with determining
what a native boolean is from language bindings.

(Oh! another ABI break - if only vlc_input_item_t weren't public)

This check is already made by the new safe option flag (still broken, but to be fixed one day)

streaming (hopefully) more cleaner way like:

standard{access=http,bind=:8080,path=/myfile.ts}
equals to
standard{access=http,dst=:8080//myfile.ts}
(that extra / doesn't seem to harm and it's only visual flaw)

Should fix builds on linuxes using that library: ALT, PLD, Fedora.

buildbots should be able to compile asa cleanly now (unless for X-compile of course)

This is not the playlist's work at all
Fix #1520