extension des fichiers d'export

* AL (2013-05-26) : modifier l’extension des tableaux exportés : .csv —>.txt
* MD (2013-05-31) : s assurer du format tabulations + UTF-8

(from redmine: issue id 147, created on 2013/05/30 by Matthieu Decorde)

assigned to @project_3134_bot_c287846fb4704c83fd27510cd997e5a9

added core priority::high type::feature + 1 deleted label

à tester après le déploiement

(from redmine: written on 2013/06/13 by Alexey Lavrentev)

OK (mais le problème du lien cassé #148 persiste)

(from redmine: written on 2013/07/23 by Alexey Lavrentev)

added time estimate of 30m

closed

assigned to @mdecorde and unassigned @project_3134_bot_c287846fb4704c83fd27510cd997e5a9

changed milestone to %Portal 0.6