- removed the "follow" functionality from the Isolation Tool
- created a new application Tool named Follow Tool
- added the "follow" functionality in the Follow Tool and added the new feature of allowing to perform "follow" on an area selection
- fixed issue in the Excellon Editor where the Space key did not toggle the direction of the array of drills
- combed the application strings all over the app and trimmed them up until those starting with letter 'O'
- updated the translation strings
- Copper Thieving Tool added a new parameter to select what extra geometry to include in the Pattern Plating Mask; added it to the Preferences
- made a wide change on the spinners GUI ranges: from 9999.9999 all values to 10000.0000
- fixed some late issues in Corner Markers Tool new feature (messages)
- upgraded Calculator Tool and added the new parameter is the Preferences
- updated translation strings
- 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
- made sure that the right tools go only to the intended use, in Tools Database otherwise an error status message is created and Tools DB is closed on adding a wrong tool
- fixed the usage for Tools Database in Unix-like OS's
- done some modest refactoring
- fixed the Search and Add feature in Geometry Object UI
- fixed Paint, Isolation and NCC Tools such the translated comboboxes values are now stored as indexes instead of translated words as before
- in Geometry Object made sure that the widgets in the Tool Table gets populated regardless of encountering non-recognizable translated values
- in Paint Tool found a small bug and fixed it
- in Geometry UI finished a very basic way for the Polish feature (this will be upgraded in the future, for now is very rough)
- added some new GUI elements by subclassing some widgets for the dialog pop-ups
- in NCC Tool and Isolation Tool, pressing the shortcut key 'T' will bring the add new tool pop up in which now it is included the button to get the optimal diameter
- in Geometry UI and for Solderpaste Tool replaced the pop up window that is launched when using shortcut key with one that has the context menu translated
- some UI cleanup in the Geometry UI
- modified some strings and updated the translation strings
- in NCC Tool added a check for the validity of the used tools; its only informative
- in NCC Tool done some refactoring
- modified the Properties Tab for various FlatCAM objects preparing the move of Properties Tool data into the Properties Tab
- if the Properties tab is in focus (selected) when a new object is created then it is automatically selected therefore it's properties will be populated
- added a bilinear interpolation calculation class from: https://github.com/pmav99/interpolation
- in CNCJob UI Autolevelling: made sure that the grid can't have less than 2 rows and 2 columns when using the bilinear interpolation or 1 row and 1 column when using the Voronoi polygons
- in CNCJob UI Autolevelling - added a save dialog for the probing GCode
- added a new GUI element, a DoubleSlider
- in CNCJob UI Autolevelling - GRBL controller - Control: trying to add DoubleSlider + DoubleSpinner combo controls
