BQS — unicode/wstring issue

Bibliographic repositories may deal with citations using non-ascii
characters (for example MEDLINE is using unicode for foreign characters).
Sending such strings using IDL type 'string' will result in a CORBA
exception (character encoding error, or something like that). The problem
is not with attributes stored and sent in the dynamic properties - they
are wrapped in CORBA Anys, and therefore may be encoded using IDL
type 'wstring' without changing BQS IDL - but the problem is with
explicitly specified attributes.

Resolution:
To change the type of the following attributes (and typedefs) from
'string' to 'wstring':

• in DsLSRBibObjects module: Keywords, surname, first_name,
  mid_initials, postal_address, affiliation, name (in Organisation, Service,
  and Journal), the_abstract, table_of_contents, title
• in DsLSRBibQuery module: PhraseList

see below