Merge pull request #75 from VinceMacBuche/ust_3711/implem_3712/Remove_old_upgrades

Ref #3711 : Remove all entries about upgrade from 2.3 to 2.4
Fixes #3733 - Fix wrong and add missing folder for Rudder documentation
Merge pull request #78 from nperron/ust_3692/int/3733_Add_Rudder_doc_to_rudder-webapp_package_bis

Fixes #3733 - Fix wrong and add missing folder for Rudder documentation
Fixes #3725 - Change output of rudder-reports postinst and rudder-upgrade from rudder-webapp
Refs #3725 - Fix typos in output messages
Refs #3725 - Change messages from postinst and rudder-upgrade script to hide details
Refs #3725 - Fix typo on rudder-reports package postinst and reformat rudder-inventory-ldap output
Refs #3725 - Fix wrong output redirections, messages and format in rudder-upgrade script and postinst of rudder-reports, rudder-webapp and rudder-inventory-ldap
Refs #3725 - Fix again typo in rudder-webapp and rudder-reports
Refs #3725 - Fix again error message in rudder-reports
Merge pull request #77 from nperron/ust_3724/int/3725_change_output_of_rudder_packages

Fixes #3725 - Change output of rudder-reports postinst and rudder-upgrade from rudder-webapp
Fixes #3738 - Remove reference of 'Policy Templates' (PT, policy template, Policy Template) in rudder-upgrade script
Refs #3738 - Remove code for migration of Technique 'Set the permissions of files' from Rudder 2.3 to 2.4~beta3
Merge pull request #79 from nperron/ust_3711/int/3738_remove_remaining_pt_ref

Fixes #3738 - Remove reference of 'Policy Templates' (PT, policy template, Policy Template) in rudder-upgrade script
Fixes #3742 - Fix rudder-webapp postinst
Merge pull request #80 from nperron/ust_3724/int/3742_fix_rudder_webapp_and_irudder_inventory_ldap

Fixes #3742 - Fix rudder-webapp postinst
Fixes #3743 - Remove useless output of 'creating rudder database' in rudder-reports and redirect error output of a command line in rudder-upgrade
Merge pull request #81 from nperron/ust_3724/int/3743_fix_broken_output

Fixes #3743 - Remove useless output of 'creating rudder database' in rudder-reports and redirect error output of a command line in rudder-upgrade
Fixes #3747 - Fix initialization of variables
Refs #3747 - Remove if statement about CFEngine nova