GcLabel paint is a CPU hog

.. and for no good reason.
Windows Look and Feel

.. akin to the Mac look and feel
.. still needs a bit of cosmetic work, but basically sound
.. also added in fixes to native file imports

Fixes #404
Fixes #504
Windows Look and Feel Mac Fixups

.. fixes the Mac build
.. Windows still crashes
Fix Windows Look and Feel crash on ICAL

.. fixed crash when compiling without ICAL
.. I found because my Windows build doesn't have ICAL
Whitespace cleanup
Windows: Toolbar buttons style

.. use cleanlooks since its very close to the Mac look
we are trying to achieve, but without the metal finish.