Parts hardcoded in French

[smadbe]

To be moved to translation files:
answer.php lines 40, 53, 75
contestInterface/data.php: lines 29, 32, 35, 41, 80, 83, 150, 153, 156, 216, 272, 444, 488
contestInterface/solutions.php: lines 18, 25
actions.php lines 99, 101
teacherInterface/awardsPrint.php: 7
teacherInterface/dataCertificates.php : 9, 14, 21
teacherInterface/export_results.php : 8, 74
teacherInterface/jqGridData.php: 32, 265, 633, 639-641, 647
teacherInterface/login.php: 93
teacherInterface/nextContestData.php: 8
teacherInterface/notice.php: 16, everything actually :-/
teacherInterface/printCertificates.php 220,
teacherInterface/questions.php: 12, 21, 30, 41, 45
teacherInterface/rankContest.php: 180
teacherInterface/recommendSystem.php 16
recover.php: 117-119
teacherInterface/recoverAnswers.php 20
teacherInterface/scores.php 12, 44, 48, 54, 63, 74
teacherInterface/totalScores.php 9, 12, 34, 81, 85