`wxLaunchDefaultApplication()` fails on files with spaces on Unix
systems due to a programmer error. This is fixed in newer wxWidgets
versions, so let's backport it as a workaround.
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.
* Remove duplicate developer credits added in last commit.
* Update developer email addresses.
* Change copyright.h from GPL2+ to GPL3+ per FSF.
* Update newstroke license from CC-BY to CC0 with permission by author
Vladimir Uryvaev which reflects the official license on the newstroke
website http://vovanium.ru/sledy/newstroke/en.
* Coding policy fixes in AboutDialog_main.cpp.
Eeschema: cleaning code. Start work to enhance annotation algorithm.
Already added an option to annotate using sheet number (sheet 1 uses numbers 100 to 199, sheet 2 uses 200 to 299..).
Works fine if deleting existing annotation, but needs work to be used when the existing annotation is kept .
Mikolaj Wielgus
Jeff Young
Seth Hillbrand
Marek Roszko
jean-pierre charras
Jon Evans
Ian McInerney
Maciej Suminski
Chris Pavlina
Wayne Stambaugh
Dick Hollenbeck
charras