Updated tools/curl-quick-guide.md, appended example dump whole HTTP response.
Updated lang/py/.
Merge branch 'master' of github.com:shuge/man
Appended section about how to pull tags.
Updated lang/py/notes-on-mysqldb.md.
Updated web/django/notes-on-django.md.
Merge branch 'master' of github.com:shuge/man