vtk_ui package included in install
	buttons now set state correctly on copy

Configurator intercepts click events on the canvas
It then determines what DP template attribute was
clicked on.

It logs double clicks, and then will "activate" that member.

Removed old configurable code for template

Changing tactics on how to approach configuration;
moved configurable logic out of template, will move to
attributes directly.

Can now detect clicks in arbitrary fillarea polygons

UI Widgets now render on their own renderer; not quite ironed out the
issues with that technique yet, but the renderer is contained by the
manager class, which is a singleton per render window. Also created the
editors subpackage, which integrates vtk_ui elements directly with the
things they that can configure, starting with the fillarea.

UI widgets will now show up on the top most layer, and will actually
persist between canvas.update() calls. Woo!

Allows editing of color and fill style, though that appears to not work
properly currently.

Extracted click/drag logic into mixin classes. Other editors will be
able to use the exact same logic, woohoo. Interacting with a toolbar is
still a bit fiddly, and there's tons of flashing; what's that all about?

Integrated into editors.fillarea and editors.line

Renders box on each tick of drag, decreased drag buffer zone

…ursor

Fixes some whitespace issues that were left behind as well

Conflicts:
	Packages/vcs/Lib/VTKPlots.py

… code

…actions_updated

Conflicts:
	Packages/DV3D/data/coastline/high/ne_10m_coastline.README.html
	Packages/DV3D/data/coastline/low/ne_110m_coastline.README.html
	Packages/DV3D/data/coastline/medium/ne_50m_coastline.README.html