change zip make target

Create in build:
- a zip archive of the html file
- a copy of the pdf
- a zip archive of the source

Author: pdebuyl

Makefile

@@ -103,12 +103,14 @@ pdf: latex
 	cp build/latex/ScipyLectures.pdf ScipyLectures-simple.pdf
 	cp build/latex/ScipyLectures-nup.pdf ScipyLectures.pdf
 
-zip: html pdf
+zip: clean html pdf
 	mkdir -p build/scipy_lecture_notes ;
+	cp ScipyLectures.pdf ScipyLectures-simple.pdf build/html/_downloads/
 	cp -r build/html build/scipy_lecture_notes ;
 	cp -r data build/scipy_lecture_notes ;
-	cp ScipyLectures.pdf build/scipy_lecture_notes;
+	cp ScipyLectures.pdf build/ ;
 	zip -r build/scipy_lecture_notes.zip build/scipy_lecture_notes  
+	git archive -o build/scipy_lecture_notes-source.zip --prefix scipy_lecture_notes-source/ HEAD
 
 install: cleandoctrees html pdf
 	rm -rf build/scipy-lectures.github.com