Use DB_COLLATE, a configuration that is separate from the LOCALE.
Use cygpath to calculate windows paths; it's easier.
Added SQL vars CONF_COLLATE and CONF_USER_PASSWORD, needed in case we don't have access to the server's file system.
Added mysql default options as comments and fixed the test for the Windows Postgres locale "problem".
Set utf8 as default character set for our mysql clients.
For mysql, pass a configuration variable CONF_USER_PASSWD.
Added the new CONF variables to the sqlvars_end.m4 generator.
A few aesthetic modifications to the m4 macros for mysql.
Added SQL routines for mysql to create the database unprivileged user.
Use -a if soing more than one shell test, instead of test && test.