- DNs are always used in canonical form: lowercase, no spaces. This is
how they are internally handled and stored in paths and fields such as
member and memberof
- Attribute names now can have any combination of lower/uppercase and
stuff should work
- When modifying an attribute with a name that hase a different
lower/upper combination than the previously stored value, keep the
previous attribute name
- Trim spaces from values and do not store empty values
