- Explicitly disabled posix mode in all bash scripts as we are
using several features not supported in posix mode (bnc#739338).
- Fixed ipv6 dad / link ready wait time calculation (1/10 of the
specified time were used), replaced useless up flag check loop
with link_ready_wait to avoid send errors from dhclient6 and
cleaned up link / dad wait verify flag after status update
(bnc#697929).
- Fixed to quote config / interface variables in ifservices script
and cleaned up content of the ESSID which gets appended to them
by NetworkManager dispatcher hook (bnc#735394, CVE-2011-4182).
Fixed also to return proper exit code 0 in NM dispatcher hooks.
- Changed to call ip addr flush in ifdown, but after ip link set
down as it does not cause ipv6 sysctl tree side effects then
at least with more recent kernels (bnc#580018,bnc#559170).
- Fixed to wait for the end of ipv6 duplicate address detection,
that can cause failures of further services.
Added LINK_READY_WAIT and IPV6_DAD_WAIT variables (bnc#697929).