Loft layer now allows for an explicit layering function.  This works well for large polygons that the vector filled option can't handle.  Added the buffer texel option in the loaded images.  Messing with the screen importance.  Turned off the buffer builder.
Border pixel support for texture atlases working.
Added Point3d (double) versions of the coordinate transforms.  Converted the screen space logic to doubles.  This fixes paging problems in the new screen space calculations.
Switched globe and map view coordinates (and quaternions) over to doubles.  This fixes the shakiness of the motion model at high zoom levels.
Fade working again.  Overlaid tracked views working with async rendering.  Drawable atlases now respecting draw priority and visibility range.  Fixed a but in single byte compressed textures in texture atlases.  A few more changes related to the great double migration.  Now rescaling texture to include a boundary, thus fixing the boundary problem in texture atlases.  Dealing with view resize failing in EAGLView.  Loft layer now has a special mode for filled, layered polys.  Fixed an ordering problem with skirts.  Labels working again.
Working on shape selectability.  Wasn't getting rid of selection IDs in the component.  Added ClipAndProject routine to geometry.
Shape selection finally working.  Cleaned up a little retina logic here and there.
Playing with the texel border logic for dynamic textures.  Added support for empty placeholder images in quad tile paging.  Turned down the sampling in cylinders.
Pulled resources back into the tester project.  Quad paging fix for Maply.
Fixed and edge case in the subdivide edge routine.  Changing the renderer's clear color now triggers a render setup.  Added a hack to turn off glFlush in the layer thread when the app's been backgrounded.
Tweaked project settings to target iOS 6.1
Merge branch 'develop_2_2' of https://github.com/mousebird/WhirlyGlobe into develop_2_2