initial support for virtual tables in Perl (WORK IN PROGRESS)
bug corrections & addition of class VirtualTable/PerlData
various code refactorings, completion of the doc
various fixes / improvements
cleanup
- Emacs settings no longer in dbdimp.c source
- remove duplicated code (generalize cals to stacked_sv_from_sqlite3_value())
- variables renamed
implementation of FIND_FUNCTION, plus a couple of cosmetic changes in various places
test the example described in L<DBD::SQLite::VirtualTable::PerlData/"Hashref example : unicode characters">
fixes for VC6
Merge branch 'vtab'