- working on Milling Tool and Drilling Tool: made sure that the plugin UI is initialized only when the plugin (Tool) is run in order to avoid errors like (wrapped C++ objects was deleted)
- for all the plugins optimized the plugin name
- renamed the app to FlatCAM Evo in order to make a difference from FlatCAM app which follows its own path
- modified the splash image to reflect the new naming of the app
- modified some of the documents (License, Readme) in the app to reflect the actual reality in 2021
- in Gerber Editor fixed an error when using the Distance Tool with "Snap to center" option active: if clicking not on a pad Distance Tool was not working
- updated the Turkish translation strings (by Mehmet Kaya)
- fixed the issue with factory_defaults being saved every time the app start
- fixed the preferences not being saved to a file when the Save button is pressed in Edit -> Preferences
- fixed and updated the Transform Tools in the Editors
