[Springframework-rcp-dev] better date chooser integrations

[Peter De B. <pet...@gm...>]

All,

I have created binders for the following date choosers:

- JXDatePicker from SwingLabs (https://swingx.dev.java.net/)
- JDateChooser from JCalendar (http://www.toedter.com)

NachoCalendar (http://nachocalendar.sourceforge.net/) was already supported.

I'm going to promote these binders (and bindings) to the support module, as
they're stable.

All these products share the same license (GNU Lesser General Public
License), so we can safely include them in the project.

To be able to commit these, I have to update the pom.xml of the root module.

The JCalendar jar is not in the central maven repository, but it exists in
the evolvis.org maven repository (http://maven-repo.evolvis.org/), so I'll
also add the repository to the pom.xml.

Am I forgetting something, or can I go ahead?

Peter