* Used http://www.woogerworks.com/files/sets.xml as a base
* update version
* use mtgjson.com as source
* adapted some sets name (es: 6E => 6ED)
Caveats:
* Not all previous sets are present (e.g.: WOTC, WMCQ, WRL); they were
not present in woogerworks’s sets.xml anyway