libnl: update to libnl-3.2.24

Signed-off-by: Stephan Raue <stephan@openelec.tv>
ppp: update to ppp-2.4.6

Signed-off-by: Stephan Raue <stephan@openelec.tv>
wpa_supplicant: update to wpa_supplicant-2.1

Signed-off-by: Stephan Raue <stephan@openelec.tv>
pptp: update to pptp-1.8.0

Signed-off-by: Stephan Raue <stephan@openelec.tv>
rpcbind: update to rpcbind-0.2.1

Signed-off-by: Stephan Raue <stephan@openelec.tv>
freetype: update to freetype-2.5.3

Signed-off-by: Stephan Raue <stephan@openelec.tv>
libssh: add some notes about recent releases

Signed-off-by: Stephan Raue <stephan@openelec.tv>