vim: update to 7.4.410.
nodejs: update to 0.10.31.
MesaLib: update to 10.2.6.
php: update to 5.5.15.
Manual: add a section about INSTALL/REMOVE files.
Manual: twerks for previous.
Manual: explain "virtual?vpkg" runtime deps.
ntp: use make_dirs; add systemd build option.
wpa_supplicant: added systemd build option.
Manual.md: tyop.
dhcpcd: added systemd build option.
alsa-utils: added systemd build option.
avahi: added systemd build option.
dcron: added systemd build option; use make_dirs.
openssh: added systemd build option.
lvm2: added systemd build option.
nfs-utils: added systemd build option.
sane: added systemd build option.
openssh: remove obsolete INSTALL message.
New package: libpar2-0.4