Issue #27 Make the query size larger or configurable, or improve output formatting. Added a sys_config table, with a new variable called statement_truncate_len within it, still defaulting to 64 characters long. The format_statement function now checks whether a user variable of the same name exists with a value, and if not fills it from the table selecting that row, and then truncates the input statement to that size (actually, +1, as the intermediate  is 5 characters long, there is one left over from removing the 2 chars either side)
Add extra protection in case the statement_truncate_len variable is removed from the sys_config table