adva_user: added name :register for signup field
adva_user: added name :register for signup field

svenfuchs/adva_cms,svenfuchs/adva_cms,svenfuchs/adva_cms,svenfuchs/adva_cms,telekomatrix/adva_cms,telekomatrix/adva_cms,telekomatrix/adva_cms,botandrose/adva_cms,botandrose/adva_cms,telekomatrix/adva_cms,telekomatrix/adva_cms,telekomatrix/adva_cms,botandrose/adva_cms,svenfuchs/adva_cms