Log Message:
tex-datatool{,-doc}: update to 2.29

2.28
 * datatool.sty:

   - added \xdtlgetrowindex

   - \DTLloadrawdb: changed \xdef to \protected at xdef

   - some bug fixes

 * datatool-base.sty:

   - added \DTLformatlist and accompanying commands
     \DTLlistformatsep, \DTLlistformatoxford,
     \DTLlistformatlastsep, \DTLandname and \DTLlistformatitem.

 * datagidx.sty:

   - changed initialisation of label in \datagidx at setfieldvalues

   - \datagidxstripaccents now changes \add at accent@,
     \@text at composite@x and \@tabacckludge

   - added \datagidxextendedtoascii

   - \printterms uses \twocolumn if balance=false and columns=2