Merge pull request #4 from cindeem/gh-pages

edit markdown layout
adding link to mailing list and calendar
Add meeting notes for 2013-09-18
Merge pull request #5 from jhamrick/gh-pages

Add meeting notes for 2013-09-18
Added a link to another useful page that has lots of other links on it for beginning python.  Kind of a "cheat sheet" for links.
Merge pull request #6 from choldgraf/patch-2

Added a link to the main page
Update meeting time and how it's computed

Note that changes to _config.yml are not picked up by
    jekyll -w serve
So, I moved that variable to `py4science/index.md` so it would get picked up
Reverted py4sci meeting time to _config.yml

It'd be nice to figure out a place to put this that would be caught by `jekyll
-w serve`. In the meantime, this is the only way I see to get this information
picked up across pages.
A bit of a refactor to DRY us up

py4sci is now a static page layout, which is used by the pypost layout for posts
Also added a nicer border below the header via CSS
An initial commit of some py4data stuff
Added initial support for tags / subgroups
NF: added intor to programming link suggested by Fernando