FS-3000 mod_conference: if more digits than the length of the correct pin the remaining digits are accounted for next retry

"LIBS" in the final fsxs script will be empty now.
We still link against libfreeswitch when building a module,
but we don't explicitly list (some of) its dependency libs anymore
(this list was not complete anyway).

This fixes a bogus /path_to_source/expat.la entry in LIBS that
came from "apu-config --libs".

Tested on Gentoo x86_64 (binutils 2.20.1) and Centos 5.5 (binutils 2.17.50).
Tested-by: Stefan Knoblich <s.knoblich@axsentis.de>
Signed-off-by: Stefan Knoblich <s.knoblich@axsentis.de>

This is useful when you want to find the energy a member joined with
without having to pull the XML list

add execute_on_originate var '<app> <arg>' to run in origination thread or '<app>::<arg>' to run async. also originating_leg_uuid variable to show the uuid of the originating leg on an outbound channel

FS-2989: Places ;fs_path= within the contact string <...> when using NDLB-connectile-dysfunction-2.0, instead of just appending to the end of the contact string.