Added kbibtex swap files to 'bibclean' target in Makefile.

Makefile

@@ -4,12 +4,15 @@ d := docs/
 include base.mk
 include $(d)rules.mk
 
-.PHONY: all clean distclean
-
 all: docs
 
 clean:
 	rm -rf $(BUILD)
 
-distclean: clean
+bibclean:
+	rm -f `find docs/report.bib~*`
+
+distclean: clean bibclean
 	rm -f `find -name \*.pyc`
+
+.PHONY: all clean bibclean distclean