closing feature #4615
and homogenizing export cases (export folder and export selection of publication)
ney #feature4615 :  Merge branch 'ney-feature4615' of https://github.com/NicolasEYSSERIC/Silverpeas-Components into master
Add the translations about the kmelia publication export that were removed by error in 5.12

Conflicts:
	kmelia/kmelia-config/src/main/config/properties/org/silverpeas/kmelia/multilang/kmeliaBundle.properties
	kmelia/kmelia-config/src/main/config/properties/org/silverpeas/kmelia/multilang/kmeliaBundle_fr.properties