hikalkan/jtable — pull request #735 by rsacher (2013-06-25 13:14:36+00:00)
Title: Support for composite (multiple) keys

Sometimes there is more than one key field in a database table.
An intermediate table ("n") in a 1:n:1 relation might have two
key-fields.
Together, they identify a unique record.
Therefor, eg. for deletion, these two keys must be posted back.