Add field attribute do MessageAdminForm
Add field attribute do MessageAdminForm

Fixes deprecation warning :

Creating a ModelForm without either the 'fields' attribute or the
'exclude' attribute is deprecated - form MessageAdminForm needs updating

fgirault/smeuhsocial,amarandon/smeuhsocial,amarandon/smeuhsocial,fgirault/smeuhsocial,fgirault/smeuhsocial,amarandon/smeuhsocial