converting to persistent 2.1
converted everything except odbc.hs problem using new acquire vs resourcet
compiles:persistzonedtime is gone:acquire instead of resourcet:FieldDef instead of loose tuples:logger is added to open
uses reader instead of dedicated asksqlconn
cabal fixes:use cabal configure -ftester
why do we need a json instance cos needed generic [read and ord] for composite primary keys to work
minor
foreign key is now sqlint32 was sqlint64:use int instead of bigint when creating the primary key:else get ERROR 1215 (HY000): Cannot add foreign key constraint
use 32bit version sqlint32 instead of sqlint64 for primary key
add simple test for composites
set equeleto range: test composite pkey and esqueleto
esqueleto doesnt work for composite primary keys:still looking for ???.id