Merge branch 'release/1.4.3' into develop
Begin 1.4.4 dev
Remove whitespace
Fixed a reflection warning.
Implements LayoutManipulation for card-panel

See card-panel test in test/seesaw/test/core.clj for usage.
Address issue #126

Initial delay for a timer was inexplicably set to 1000 rather than 0
as documented.
Remove whitespace
Remove println for issue #127. Derp.
Use j18n 1.0.2 which doesn't have a version range.

Previously j18n used a version range which caused trouble/confusion when
trying to use Seesaw with Clojure 1.5 or later. j18n 1.0.2 no longer
uses a version range.
Added the :column-widths option to table
Add ActionListener support for java.awt.MenuItem
Added test for :column-widths and fixed implementation code
Merge remote-tracking branch 'stathis/develop' into develop
Support for multiple frame icons
Merge pull request #130 from ummels/icon-images

Support for multiple frame icons
Support for :listen option when constructing a frame
Expand on how :on-close affects events fired by frame.
modified :import option on default-transfer-handler to allow checking of data before accepting import

:import

can now accept either a function (as before)
or a map {:on-drop   (fn {data] ...)
          :can-drop? (fn {data] ...)}
Merge branch 'dnd-filter-2' of https://github.com/davesann/seesaw into develop
Fix implementation of value! for nil values

The implementation of value! was incorrectly filtering out falsey values
which caused things like clearing text from a nested text box to fail.
Thanks to @geraldodev for pointing this out.