* ALL: More changes for wxDC based zooming.
* 3D_VIEWER: Wrap 3d_viewer.h to prevent redefinitions.
* CVPcb: Replace wxList with boost::ptr_vector and take advantage of boost::foreach.
* CVPcb: Fix automatic association bug.
* CVPcb: Rename some variables for clarity and some minor code clean ups.
* CVPcb: Fix GTK sizing issue in library and path dialog.
* EESchema: Remove left over sizer from last commit from library and path dialog.