Update bankofexpo docs to current version. Add info on current/latest web config.

handbook/bankofexpo.html

@@ -12,7 +12,7 @@
 <p><em>Please be respectful of this website as you'll find you can edit transactions that others have listed. This is to allow people to collaboratively add their combined expenses with all the complications that cavers bring to anything. However, it could be abused. Please don't. The admins can see records of who changed what and when. </em>
 <p>BoC was originally designed for <b>expedition use</b>, where expenses are distributed by number of nights/car-passengers/beers. Being online helps accounting transparency, allows real-time review of creditors/debtors, and, if input permissions are devolved, reduces the burden on the treasurer. Due to its expedition origins it correctly handles exchange rates changing over time.
 <p>Please read how these expenses records are also kept manually on paper in the <a href="bierbook.html">Bier and Sesh books</a> in the potato hut.
-<p>The 2018 Bank of Expo is hosted at <a href="http://expo.survex.com/boe">expo.survex.com/boe</a>.
+<p>The current Bank of Expo is hosted at <a href="http://expo.survex.com/boe/">expo.survex.com/boe/</a> (and the previous year at <a href="http://expo.survex.com/boe-lastyear/">expo.survex.com/boe-lastyear/</a>.
 <p>Bank of Expo (and the same software running as Bank of CUCC for ordinary caving trips) was written by Stuart Bennett in Cambridge. He says:
 <p>
 <em>"BoC is a multi-user auditable online share-based accounting system.  The `share-based' part is probably its distinguishing feature: absolute amounts are split evenly across the slates of implicated users and/or ring-fenced cost-pools.  Transactions are automatically double-entry, and as real-world transactions are made against a real bank account, the
@@ -20,10 +20,9 @@
 <p>
 The split mechanism transparently underlies everything, but for user-friendliness there are various handy web-forms provided which generate the split tables (`Transaction Groups').  These range from a simple person-to-person swap, to a customizable `Event' with costs for various items being automatically squirrelled away into pre-set cost-pools."</em>
 
-<p>Now read the online documentation at <a href="https://github.com/malc0/BoC">https://github.com/malc0/BoC</a> which has a link to a demonstration system that you can play with (CUCC meets 2014-15).
+<p>Now read the <a href="boc.pdf">the documentation</a> (PDF) (for the version running on the expo server).</p>
 
-<p>
-Here is the <a href="bocdoc.pdf">the original documentation</a> (PDF).  It's a bit out of date: the instructions online  largely replace Chapter 2.
+<p>Source and docs for the upstream version are online at <a href="https://github.com/malc0/BoC">https://github.com/malc0/BoC</a> which has a link to a demonstration system that you can play with (CUCC meets 2014-15).</p>
 
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