asterisk-1.8.x: bump version

Update asterisk-1.8.x to version 1.8.28.2 to address CVE-2014-4047.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
asterisk-11.x: bump version

Update asterisk-11.x. to version 11.10.2 to address CVE-2014-4046.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
baresip: bump to version 0.4.11

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
re: bump to 0.4.9

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
rem: bump to 0.4.6

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
asterisk-chan-sccp-b: bump to version 4.2r5540

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
asterisk-chan-dongle: allow user to send USSD commands directly

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
Merge branch 'master' of git://git.openwrt.org/feed/telephony