Improve order expression handling
Merge pull request #701 from mysema/i698

Improve order expression handling
Merge remote-tracking branch 'myschema/master'
Adding support for "default values" in insert and merging statements

SQLTemplates now has a new field called defaultValues. The value of the
field:

CUBRID: DEFAULT VALUES
Postgresql DEFAULT VALUES // tested
MySQL: VALUES() // tested
H2: VALUES() // tested
HSQLDB: VALUES()
Oracle: VALUES()
SQLServer DEFAULT VALUES
SQLite: : DEFAULT VALUES
Derby: VALUES (DEFAULT) // only works if there is only one column in the 
                           table.
Teradata: DEFAULT VALUES