[Ráfaga] Nº248: calendar, debt, data, development, queries

[Jorge Sanz]

* 2016 geohipster calendar, lots of awesome maps
  http://www.cafepress.com/entchevdotcom.1679454944

* Spanish public administrations debt map from 2008 to 2014
  http://www.sielocal.com/public/salidas/BarChart.aspx?reporttipoid=708

* An online guide about bad data and how to solve many issues
  https://github.com/Quartz/bad-data-guide

* Scrum is dead: open development and new ways to work
  https://opensource.com/business/15/11/open-development-method

* A free ebook on how to improve database queries
  https://www.vividcortex.com/resources/practical-query-optimization

Raf