Add Makefile with base targets to make release zipball

Makefile

@@ -0,0 +1,39 @@
+VERSION := $(shell git tag | tail -n1)
+PACKAGE := vim-onoff
+RELEASE_DIR := build
+RELEASE_FILE := $(PACKAGE)-$(VERSION).zip
+RELEASE := $(RELEASE_DIR)/$(RELEASE_FILE)
+
+define HELP
+Use make <target> where target one of
+  clean		to cleanup latest build
+  zip		to create a zipball from package
+endef
+
+
+all: help
+
+export HELP
+help:
+	@echo "$$HELP"
+
+
+zip: clean
+	@mkdir -p $(RELEASE_DIR)
+	@echo "creating zipball..."
+	@cd ..; \
+	zip -r $(PACKAGE)/$(RELEASE) $(PACKAGE) \
+	-x "$(PACKAGE)/.*" \
+	-x "$(PACKAGE)/*~" \
+	-x "$(PACKAGE)/$(RELEASE_DIR)/*" \
+	-x "$(PACKAGE)/[Mm]akefile" \
+	-x "$(PACKAGE)/doc/tags"
+	@chmod 755 $(RELEASE)
+	@echo "well done."
+	@ls -l $(RELEASE)
+
+
+clean:
+	@if test -f $(RELEASE); then \
+		rm $(RELEASE); \
+	fi