fixing bug #4760 documents import verif size limit
bug #4760 :  Merge branch 'bug-4760' of github.com:CecileBONIN/Silverpeas-Components into components-5.12.x
fixing bug #4760 documents import verif size limit
fixing bug #4760 documents import verif size limit
bug #4760 :  Fix the merge conflict with KmeliaRequestRouter
bug #4760 :  Generalize in one single point the generation of the error message for file size limit exceed. Fix the maximum file size computation in Mo