More fixes, add promethus control endpoint

Fixes a getaddrinfo misuse.

Add prometheus endpoint for control socket... Should have done this way sooner.

Version 2.3.4: misc fixes

• Send keepalives every 1s, detect timeouts at 2s (@stapelberg)
• Fix calculation of loss ration with sequence of tunnel (@flohoff)
• Fix compiler warning (switch fall through)
• Fix: ERRMSGSIZ should be greather than PATHMAX
• OpenBSD: fix bad usage of TUNSIFINFO: missing type

2.3.1: build fixes

This release is just a build fixing release.
No need to upgrade for users of 2.3.0.

Includes a static binary build against libsodium 1.0.8, libev 4.22, libpcap 1.7.4 on debian etch

Static package can be used on any i386 system:

tar -C / -xpzf mlvpn_static_ev_4.22_libsodium_1.0.10
# for debian:
insserv mlvpn

2.3.0 VoIP on aggregation

2.3.0 can handle VoIP on aggregation by redirecting traffic to specific interface using bpf filters.

For Debian GNU/Linux wheezy AMD64:

wget https://github.com/zehome/MLVPN/releases/download/2.3.0/mlvpn_wheezy_2.3.0.bpo70.1_amd64.deb \
  https://github.com/zehome/MLVPN/releases/download/2.3.0/mlvpn_wheezy_libsodium13_1.0.0-1.bpo8.3_amd64.deb
dpkg -i mlvpn_wheezy*.deb

Fix reordering system

This release fixes reordering system in case of a packet loss...

Release 2.2.0

Implement reordering for aggregating non similar links (wifi, 3G, 4G, ..)