FS-6475 --resolve

CID: 1211948 fix memory leak of decoded iks message in function parse_plain_auth_message in mod_rayo

to only set the low 32 bits of the 64 bit offset if the file only contains
a 32 bit offset.

FS-6506 --resolve Technically when you are not using groups you do not add a <users> tag inside <domain> you just put several <user> tags in <domain> This patch will consume an extraneous <users> tag and move on making it work either way.

expect any functionality.

FS-6484: guess at fixing seg from mod_managed, this function should never be called without a channel, but if it does, throw an error instead

sofia is treating all notify sending as if they were natted rather than when nat is detected.  This causes issues on some polycoms that use strange ports in their contact for getting notifies that do not match the port the calls come from

When the path was empty, path_push_unique would cause a training colon
to be added.  This was a known issue that didn't cause any harm, but
while we're here, we'll clean this up.

sed on Mac is apparently incredibly broken and incapable of adding
newlines.  `printf 'x' | sed 's/x/\n/'` results in 'n' on Mac rather
than a newline.  GNU sed even in --posix mode does not agree with this
behavior.  None the less, we can work around it here.

the callbacks.

SIP-686 changed mod_say (en) to speak full dates when asked to speak a date in the future (rather than only weekday and time).

Some systems don't have the pkg-config file, or don't have it in the
right place.  Breaking build on those systems does have the positive
effect of getting people to file bugs with those distros, but we
should at least keep things working on Debian wheezy while getting
Debian to accept the fix to ldns.

FS-353: look for ldns pkg-config for homebrew, you will need to update your homebrew ldns package if you installed it prior to this commit, they just fixed the pkg-config file being installed

POSIX says poll.h and signal.h should not be prefixed with sys/ (ie
poll.h instead of sys/poll.h)

limits.h also defines a TZNAME_MAX so we change name of the define for
spandsp.