DWDS/Dialing Concordance Code

+ updated to v2.0.7

+ fixed segfault bug in CHitBorders::GetPageNumber() when requesting page-break number 4294967295 (i.e. 0xffffffff, i.e. UnknownPageNumber)
+ problem ocurred in a dwds kerncorpus test set; symptoms:
- initial page as declared by ddc opt-file 'page' bibl field wasn't getting read properly
- page counter was getting 'inherited' across various files

+ ddc_simple comfort changes
+ added scripts/json2kwic.perl

+ doc updates

+ added #=, #<, and #= sequence-query distance operators

+ v2.0.6: updated ddc_query.5

+ v2.0.6: added generic wildcard operator '*'

+ fixed inconsistency after 'make clean' in doc/ directory
- pods weren't getting included in distribution

v2.0.5:
+ class TxCab: added 'm_MapMode' argument
+ added class TxCabMap (default m_MapMode=1)
+ removed implicit append of '&qd=' for TxCab and descendants: now only included if argument URL doesn't end in '=',
to allow more flexible URL specifications
+ added CBiblExpander.(h|cpp): external bibliographic pseudo-fields
- implementation currently just wraps CTermExpander classes (except for Chain)

v2.0.5
+ re-factored bibliographic filtering in Bibliography.(h|cpp), QueryFilter.(h|cpp)
+ added new CConcXml member slot m_RegexOpts : initialized from CConcIndexator at option-load time (ConcordOptions.cpp)
+ added new FreeBiblIndex member m_pRegexOpts : pointer to m_RegexOpts for parent CConcXml object (utf8 by default)