story #6131 - Have a radio button field

Change-Id: I392ebc9c248d386cf0eddd1f68ea8c07d22e1179
Merge commit 'refs/changes/96/1996/11' of ssh://gerrit.tuleap.net:29418/tuleap into stable

* ssh://gerrit.tuleap.net:29418/tuleap:
  story #6131 - Have a radio button field
This is Tuleap 7.0.99.13

Change-Id: Icea3e4d4c31523c12751bf38e2cce5c86f51bc3c