Fixes #3191 : No change on Rule/Group/Directive cause no deployment
Merge pull request #92 from VinceMacBuche/bug_3191/no_change_no_deployment

Fixes #3191 : No change on Rule/Group/Directive cause no deployment
Fixes #3175: correct the category arborescence in group creation/modification
Merge pull request #104 from fanf/bug_3175/dev/make_arborescent_category_display

Fixes #3175: correct the category arborescence in group creation/modification
Ref #3175 : fix typo in function call
fixes #3332 : correct use of parametrized variables
Merge pull request #136 from ncharles/bug3332/dev/correct_use_of_parametrized_variables

fixes #3332 : correct use of parametrized variables