.gitignore: update to recent changes

Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

.gitignore

@@ -34,8 +34,9 @@ soccr/config.h
 criu/include/version.h
 criu/pie/restorer-blob.h
 criu/pie/parasite-*-blob.h
-criu/pie/piegen/piegen
 criu/pie/pie.lds*.S
 criu/protobuf-desc-gen.h
+lib/build/
+lib/c/criu.pc
 scripts/build/qemu-user-static/*
 lib/.crit-setup.files

Documentation/.gitignore

@@ -3,3 +3,4 @@
 *.[1-8]
 *.pdf
 *.ps
+footer.txt