View source for Spec preferences unweirdification

== Summary ==
The goal is to group and sort the Inkscape Preferences dialog's pages. Lots of new things have been added revision after revision, and it's really crowded now...

== Release Note ==
Changes planned to be merged in 0.49.

== Groups ==
Pages could be grouped as follow:

===Tools===
(Same group as in 0.48, but reordered so that it reflects the way the tools are actually sorted in the UI).

===Interface===
* Windows
* Grids

===Behavior===
* Selecting
* Transforms
* Scrolling
* Snapping
* Steps
* Clones
* Clip paths and masks

===Input-output===
(previously Import/Export)
* Input devices (previously Mouse)
* SVG output
* Color management
* Autosave
* Openclipart

===Not grouped===
* System
* Bitmaps
* Rendering
* Spell check

==Options==
* "Simplification threshold" from Misc to Behavior (parent page)
* "Show filter primitives infobox" from Rendering to Interface (parent page) [but do we really need it?]
* "Prevent sharing of gradients" from Misc to Tools>Gradients
* "Use current directory for Save As..." from Save to Input-output (parent page)
* "Add label comments to printing output" from Misc to Input-output (parent page)
* "Latency skew", "Pre-render named icons" and "System info" (refactored) from Misc to System
* "Default export resolution" from Import/Export to Bitmap
* All autosave options to Input-output>Autosave

==Further possible improvements==
* Add default path for Save and Save As in Input-Output (parent page)
* Move the toolbars related options from Interface to Interface>Toolbars