Aubit 4GL SVN-Code

Function name logging added - functions A4GL_debug_full_extended(),
A4GL_set_line_extended(). Buffer size increased.

Logging some messages to stdout changed to stderr.

Added setting error string in assertion handling code.

In function find_columns():
Changing calls to strcmp() to A4GL_aubit_strcasecmp(), added support for
owner prefixed columns, removed (commented) calls to A4GLSQL_set_status(),
that seems to be unneeded (not sure about that).

STRIP_QUOTES_FROM_OWNER convertsql parameter added.
USE_DESCRIBE_NOT_SQLCOLUMNS parameter setting changed from environment
variable to a convertsql parameter.
Added support for disabling the query cache.
Copy-pasted logic doing quoting/unquoting owners moved to one function,
A4GLSQLCV_ownerize_tablename().

ERR_CHK_ERROR macro fixed

Removed unused code

Just some comments

Added support for functions exitwith_sql_odbc(), exitwith_sql_odbc_errm()
Added #define A4GL_ERR_BASE 30000

WHENEVER_ERROR and WHENEVER_SQLERROR handling fixed