#184 Columns with defaults should be #IMPLIED in generated DTD

[Mattias Jiderhamn]

If a column has a default value, it need not be #REQUIRED in the DTD, since leaving the column out would use the default value.

Attached is a patch incl test case that changes just that.

[Jeff Jensen]

Ticket moved from /p/dbunit/bugs/354/

Can't be converted:

• _fixed_release: (not fixed)
• _milestone: v2.5.*

[Jeff Jensen]

Thanks! Applied patch.