Fix incorrect values for boolean paramters in prepared statements
Boolean values must be 't' or 'f'
Handle correctly null values in parameters for prepared statements
Null in xhr request are parsed like strings, so string 'null' in parameters must be checked and 'true' null values must be passed to the prepared statement
Fix #14 and clean up some code
parameters were stored twice. See #14
Clean up code in sendDataResponseFectch()
clean up code log
Fix names of isc parameters _startRow and _endRow
Add some log.
Improve nb of records fetched with LIMIT clause.