Fixed a bug when closing the 3D view while it is still loading or processing.
Working on adding material settings to 3D view.
Starting to get AMF in as a file type
Unified all the open dialogs to use a common file type list
Made application settings hold the file lists
Made the extruder count a member of ActiveSliceSettings
Made an extruderOffsets mapping
Improved the parameters that we pass to gcode renderer (made them a class)
Made it so we can remove the offsets when rendering multi material gcode
Default to grid on
Extruder offsets are now loadable and savable and editable
Added polish translation.
Merge branch '1.1.3' of https://github.com/MatterHackers/MatterControl into 1.1.3
Making it possible to register for specific settings changes (extending what we've been doing to be more generic).
Merge branch '1.1.3' into development

Conflicts:
	ConfigurationPage/LanguageSelector.cs
Don't show 3D Layer View in Touchscreen mode (for now).
Try to use the amf loaded when the file name is .amf
Fixed behavior of click widget.
Merge branch 'development' of https://github.com/MatterHackers/MatterControl into development
We can now load at least some amfs into the 3d view.
Added sliding action buttons to PrintLibrary and Print History.
Made it possible to open part preview directly into 'Edit' mode.
More work on Library.  Edit mode now contains export and edit functions (during single selection).
Add remove action to queue items.
Made amf preview work
Merge branch 'development' of https://github.com/MatterHackers/MatterControl into development
MatterControl is compiling with the new MeshGroups code.
Turned on avaid_crossing_perimeters by default.
Merge remote-tracking branch 'upstream/development' into development