cx_OracleTools Code

Added option --sort-by to allow the result set to be sorted before exporting;
added support for specifying a query rather than simply a table name to
allow for additional customization as required; removed the rownum attribute
from the rows since it serves no useful purpose; use cx_Logging rather than
printing directly to sys.stderr. Thanks to Micah Friesen for the initial patch.

Converted CopyData to using class based exceptions.

Converted GeneratePatch to using class based exceptions.

Converted to using class based exceptions and cleaned up some other code at the
same time.

Create common exceptions module and convert a few more string exceptions to
class based exceptions.

Added support for eliminating the quotas on tablespaces.

Remove the hard coded string and use the name of the script (without any paths
or extensions) as the name to use when displaying help.

Added option --include-view-columns in order to enable specification of the
column names when creating the view.

Switch to the new more intelligent parser.

Remove SQL*Plus specific statements since by default connect statements will be
issues which will only work properly with PatchDB.