Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo. Avoids needing to
repeatly update.
Also updates AUTHORS.txt from current repo with contributor names
Unlike the old "icon scale" (that actually scaled all bitmaps)
this one actually changes the toolbar size while making use
of the new bitmap bundle functionality
Add more resolutions for all tool icon bitmaps
Wouldn't want Mark's eyes to bleed
Removes old defines and work arounds for earlier wx versions and adds a
CMake requirement to use at least 3.2 (or the minimum matching wxPython
version)
