criu: Version 0.8 release

As planned, this was bugfix-mainly release. However, some new
features were added. Looking forward the v1.0 release :)
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Makefile

 VERSION_MAJOR		:= 0
-VERSION_MINOR		:= 7
+VERSION_MINOR		:= 8
 VERSION_SUBLEVEL	:=
 VERSION_EXTRA		:=
 VERSION_NAME		:=