Revision 1862648

Fixed: Error message is displayed when user having space in username logs 
in at ecommerce
(OFBIZ-10671)

Pierre pointed out that the NotValidUserName label NL translation was wrong and 
proposed a right one.

Looking at it closer EN and FR were not totally right either. I have fixed them.
Before committing, I wondered if we should remove all other languages, then 
English would be used. Or if we let it as is for users of these languages to 
propose a fix, as Pierre did. I'm more for the later, then end users who don't 
speak English would at least have something they can read and possibly amend.

Thanks: Pierre Smits