Update markdown_extra to the most recent version.

This appears to include a number of fixes & tidyups.

Change-Id: I4a18582a3dfe7ec97dabbc4c1515700408049cc6
Replace the footer with a disclaimer on the teams pages.

We can't really claim copyright on the team's descriptions and images,
and we don't really need our own social media logos here as the page
is meant to promote the team (and will hopefully soon be getting
_their_ social media links added to it).
However, since the content of their blogs & websites is outside our
control it seems wise to isolate ourselves from their content, hence
the disclaimer about it.

2014-01-12 Patch set 2: rebased
2014-01-12 Patch set 3: change wording to include comments from review.

Change-Id: I68d3c6f7c560cff276afa35e519e2a65f20961b9
Include the python tutorial on the tutorials page.

There doesn't seem to be a good reason not to have it listed here.

Change-Id: Ic972e7a0e3f51930fcf2203cde41ca5ba0527af6
Ensure BRIAN LOG FEEDS doesn't appear in the AUTHORS.

This isn't a real person, and as it may have originated from multiple
people, it's not appropriate to just redirect it with a mailmap entry.

Change-Id: I8a7ce32377c2559fb0d8659f931b40ef6ebc01a8
Updated the Bitbox description to be accurate

The description was only related to the 2011 year.

Change-Id: I2724a949ba06e94623de1a65214833f0eb15cedb
Add BATC to the sponsors.

Patch set 2: s/blushirts/volunteers/.

Change-Id: I820c2a6b79c162756f03e4b9051115ffaf336cbd
Remove old logo image.

This is the outdated '3D' style logo, and hasn't been used
for quite some time. Nothing appears to reference it either.

Change-Id: I8ea749dacc666b83ee97bc5301e19e9afa2e4146
Wipe key dates for SR2015

Confirm only the dates and cities of Kickstart 2015.

Change-Id: I2c024a29bd1f694ca3f2c226a049d97005fd5f05
Nix SR2014 dates on front page

The only things confirmed for SR2015 at the moment are related to
Kickstart; therefore remove all the other sites (until they can confirm
things), and only present the date of Kickstart.
Rewrite the Kickstart page to reflect quickstart

Change-Id: Id9d807edab2383477257973721dd258c3e2268b5
Merge "Rewrite the Kickstart page to reflect quickstart"
Merge "Nix SR2014 dates on front page"
Correct some engrish in Kickstart article

Change-Id: I63122375fe4a2856c66bd90ccf4f3b9a97ae81ea
Merge "Ensure BRIAN LOG FEEDS doesn't appear in the AUTHORS."
Merge "Include the python tutorial on the tutorials page."
Merge "Replace the footer with a disclaimer on the teams pages."
Fix #2156: Add dummy team-status data.

This makes it relatively simple to examine the teams portion of srweb
without needing to have an IDE setup to produce the data. The provided
data uses the SRZ team, which already existed partly for this purpose.

NB: This relies on change Iaa8f04c00694bbc8 in puppet to avoid disrupting
the live site.

Change-Id: If99b130ed3bad93046cc7bad2b0cd0b013d07d85
Bring about us page up-to-date

Correct two facts:
 1) The comp is not at the Uni of Soton
 2) The organisation is not run in its entirety by students

Change-Id: I128467d827b913910483ea1b3c0d37fa1e76a8cf
Merge "Add BATC to the sponsors."
Altered two instances where pages say 2014

These were missed in a previous patch