Merge remote branch 'kc/master' into new/enh/bug_5917

diff --cc C4/Auth.pm
Simple merge

diff --cc catalogue/search.pl
Simple merge

diff --cc installer/data/mysql/fr-FR/1-Obligatoire/unimarc_standard_systemprefs.sql
index 25f3f58,2773a72..526d258
mode 100644,100755..100755
--- 1/installer/data/mysql/fr-FR/1-Obligatoire/unimarc_standard_systemprefs.sql
--- 2/installer/data/mysql/fr-FR/1-Obligatoire/unimarc_standard_systemprefs.sql
+++ b/installer/data/mysql/fr-FR/1-Obligatoire/unimarc_standard_systemprefs.sql

diff --cc installer/data/mysql/pl-PL/mandatory/sysprefs.sql
index f3bc969,f09ed54..f6bb3ee
mode 100644,100755..100755
--- 1/installer/data/mysql/pl-PL/mandatory/sysprefs.sql
--- 2/installer/data/mysql/pl-PL/mandatory/sysprefs.sql
+++ b/installer/data/mysql/pl-PL/mandatory/sysprefs.sql

diff --cc installer/data/mysql/ru-RU/mandatory/system_preferences_full_optimal_for_install_only.sql
index 3feec7f,3cb5d8f..65821c0
mode 100644,100755..100755
--- 1/installer/data/mysql/ru-RU/mandatory/system_preferences_full_optimal_for_install_only.sql
--- 2/installer/data/mysql/ru-RU/mandatory/system_preferences_full_optimal_for_install_only.sql
+++ b/installer/data/mysql/ru-RU/mandatory/system_preferences_full_optimal_for_install_only.sql