build: clean up various other bits

.gitid, and some of the build directories from setup.py need to be cleaned
on 'clean'.
Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

Makefile

@@ -147,6 +147,7 @@ clean: clean-built
 	$(call msg-clean, criu)
 	$(Q) $(RM) cscope.*
 	$(Q) $(RM) tags TAGS
+	$(Q) $(RM) .gitid
 .PHONY: clean
 
 #

lib/Makefile

@@ -36,6 +36,7 @@ clean:
 	$(Q) $(RM) c/criu.pc
 	$(call msg-clean, lib-py)
 	$(Q) $(MAKE) -C py $@
+	$(Q) $(RM) -r build usr
 .PHONY: clean
 
 install: lib-c lib-py ../crit/crit c/criu.pc.in