--old-passwords
Support for option --old-protocol was removed.
Some test performed.
Tests for SSL and replication are pending.
More strict following to specification for --old-passwords
is in the TODO.
Call pthread_mutex_destroy() on not used mutex.
Changed comments in .h and .c files from // -> /* */
Added detection of mutex on which one didn't call pthread_mutex_destroy()
Fixed bug in create_tmp_field() which causes a memory overrun in queries that uses "ORDER BY constant_expression"
Added optimisation for ORDER BY NULL