- remove outdated code or comment coming from old drawing code using wxDC
- move zoom values lists to zoom_defines.h
- fix incorrect zoom max and min values (gal scaling factor limits).
You can now enable and disable snap to grid when drawing/editing across
all apps. You can also tie snap to grid to the visibility of the grid
to allow rapid enable/disable via grid display.
This reverts commit 106259f6e6b3e896ee2190195747df753ed308c8.
In its place, we set double buffering to only menubars in an attempt to
find a soluton to #4785
Fixes https://gitlab.com/kicad/code/kicad/issues/4863
CHANGED: Settings are now stored in versioned sub-directories
ADDED: First-run dialog for migrating settings from a previous version
CHANGED: Settings are now stored as JSON files instead of wxConfig-style INI files
CHANGED: Color settings are now all stored in a separate settings file
CHANGED: The symbol editor and footprint editor now have their own settings files
CHANGED: Color settings are no longer exposed through BOARD object
CHANGED: Page layout editor now uses Eeschema's color scheme
Settings are now managed through a central SETTINGS_MANAGER held by PGM_BASE.
Existing settings will be migrated from the wxConfig format on first run of each application.
Per-application settings are now stored in one class for each application.
