tcp: Don't stand absense of TCP_TIMESTAMP sockoption

It has been merged, so do require one.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
docs: Add page server parameters explanation

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
docs: Add --ms option description

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
docs: \Tabs to \Spaces

We don't use tabs in docs.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
crtools: rename binary to criu

"Tools" in the context of a binary name doesn't make any sense,
because every binary is a tool (lstool, dftool), plus it's one
tool.

So let's rename the beast to criu, which is short, pretty unique
and coincides with the name of the project.

Backward-compatible symlink is added for the sake of tests,
we can fix them later and remove the link.

Packagers beware: our binary is no longer crtools but criu.

Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>