Since feed generation is usually unnecessary during development (and can
produce potentially-confusing warnings when SITEURL is not set), running
"make html" will now skip feed generation by default. Feed generation
settings have been added to publishconf.py so feeds will be generated
when the site is published.
Also corrected some URLs in pelicanconf.py.
Certain configuration options are more useful in production than they
are in development. Some examples might be absolute URLs, external
analytics service identifiers, Disqus comments, etc. This version of the
quickstart script creates two configuration files: one for development
and the other for use when publishing. In addition, the related docs
have been expanded considerably. Last but not least, the quickstart
script will now detect whether there is a project folder associated with
the currently active virtualenv (if any) and use it by default.
