Added ODBC 2.0 & 3.0 functions POWER(), SPACE(), COT(), DEGREES(), RADIANS(), ROUND(2 arg) and TRUNCATE().
Warning: Incompatible change! LOCATE() parameters were swapped according to ODBC standard. Fixed.
Added function TIME_TO_SEC().
In some cases, default values were not used for NOT NULL fields.
Timestamp wasn't always updated properly in UPDATE SET ... statements.
Allow empty strings as default values for BLOB and TEXT, to be compatible with mysqldump.