Bypass html purifier when formatting changeset values for CSV export
Avoid unknown value error with  non escaped field value
Clean Up
Remove purifier  instantiation from the double foreach
Merge branch '2747_fix_tv5_export_issue' into stable

* 2747_fix_tv5_export_issue:
  Remove purifier  instantiation from the double foreach
  Clean Up
  Avoid unknown value error with  non escaped field value
  Bypass html purifier when formatting changeset values for CSV export

Change-Id: I199437dcfc8e21eda4844a38443581f1baa3924c
This is Tuleap 6.1.99.30

Change-Id: I213059dff38ddd522a5e418d2a88f925805d5d98