add switch_core_session_findall_matching_var func to core to get a list of uuid with a certian var set to a certian val

occasional false recognition of a fast modem when its really the V.21 modem.
This was sometimes messing up T.38 gateway operation.

FS-4527 --resolve add resample core support for asr. This code is very isolated and only effects mod_unimrcp at this time.

refactor db stuff to use single string dsn to avoid code duplication and introduce switch_sql_queue_manager api to create transactional sql queues to aggregate a bunch of sql stmts into transactions

Fix callback method to pass column count instead of the integer representation of the row we are on.

you cant have -- inside an xml comment... we should really be testing changes like this to the config files before we push this as this wouldnt even make it past a clean install start up or reloadxml test