Preprocessing for better performancy, unit tests for preprocessing, controls don't need a type anymore (makes things way less complicated and repetitive)
Refactored some things in octoprint.util.comm and octoprint.settings, added migration function to get users of the devel version up to date with their gcode scripts. Migration function will be removed again one week from now.
- renamed methods from camelCase to snake_case
- renamed callback mathods from comm module from camelCase to snake_case
- extracted and documented public interface to be used by plugins
- extracted callback interface to be implemented by subscribed callbacks to printer
- moved standard implementation to custom package
- moved time estimation classes to custom package
- File management is prepared to support folders (UI still lacking support)
- STL files are now first class citizens
- can be managed via the file list (and filtered from it)
- can be sliced on demand
- Slicing now happens via plugins
- Added Cura plugin
- uses CuraEngine directly instead of full Cura installation
- Cura profile importer for importing profiles from regular Cura installs via settings dialog
- TODO: UI for editing profiles
- API for slicing and slicing profile management