criu: Version 2.1

Here's the first once-a-month release with whatever is there in
the master branch. We have quite a few new features, but a lot of
bugifxes :)
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

Makefile.versions

 #
 # CRIU version.
 CRIU_VERSION_MAJOR	:= 2
-CRIU_VERSION_MINOR	:= 0
+CRIU_VERSION_MINOR	:= 1
 CRIU_VERSION_SUBLEVEL	:=
 CRIU_VERSION_EXTRA	:=
-CRIU_VERSION_NAME	:=
+CRIU_VERSION_NAME	:= Steel Lapwing
 CRIU_VERSION		:= $(CRIU_VERSION_MAJOR)$(if $(CRIU_VERSION_MINOR),.$(CRIU_VERSION_MINOR))$(if $(CRIU_VERSION_SUBLEVEL),.$(CRIU_VERSION_SUBLEVEL))
 
 export CRIU_VERSION_MAJOR CRIU_VERSION_MINOR CRIU_VERSION_SUBLEVEL