- 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)
- various string changes; updated the strings
- brought up-to-date the Romanian translation strings
- updated the source file when creating Excellon objects in various places in the app
- fixed the Tcl Command AlignDrillGrid
- fixed the Tcl COmmand Panelize, Excellon panelization section
- Fixed an issue in Tool Calibration export_excellon method call
- PEP8 corrections all over the app
- 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
