kamailio4: update to version 4.1.4

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
libsrtp: import from oldpackages

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
asterisk-1.8.x: update to 1.8.29, fix configure args

Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
asterisk-11.x: update to 11.11.0, fix cfg args

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