If enable in preference menu, allow the pan with drag mouse with middle button down.
both unlimited and limited pan is allowed.

* Move auto save time global variables into PCB_EDIT_FRAME object.
* Move footprint library name list global variable int PCB_EDIT_FRAME
  object.
* Improve library back up and temporary file error message strings and make
  them translatable.
* PCBNew string unification.
* Translate French code names and comments.
* Coding style policy and Doxygen comment fixes.

* Fix grid select box update bug on context menu.
* Fix via size and track width select box update bugs.
* Fix layer pair indicator button update bug.
* Fix auto track width tool bar control enable bug.
* Fix via size and track width select status bug in context menu.
* Fix layer select box and layer control widget select bug when current
  layer is removed.
* Add virtual function to notify objects derived from EDA_DRAW_FRAME that
  the units setting has changed.
* Coding policy class naming fixes.

hide/show rastnest in pcbnew is currently not working, will be fixed soon

pcbnew Rewrite the GUI relative to the tracks widths and vias diameters and drills selection and edition, for compatibility with new netclass approach.

Useful in compact designs to know hos to place a via during track creation.

pcbnew: Convert dialog_display_option from DialogBlocks to wxFormBuilder, rename files and remove typos

pcbnew: Convert dialog_general_option from DialogBlocks to wxFormBuilder and add tips to all options

added an option to enable/disable magnetic tracks in the general options dialog of PCBnew (same as the magnetic 
pads option.)  Haven't fixed the via issue 
(since I don't quite understand why it is doing this, nor does it occur in 100% of the cases), but now you can just 
turn 
off magnetic tracks when I desire to move vias by small increments.  Magnetic tracks are on by default.  Original 
via complaint here: 
http://tech.groups.yahoo.com/group/kicad-devel/message/1155

Also mostly gotten rid of the annoying "Unable to drag this segment: two collinear segments" error.  Now, if two 
(or more) segments are collinear, they are merged into one equivalent segment when you try to drag them while 
maintaining slope.  I can't imagine any cases where this would be a bad thing (and I have plenty of experience where 
the error was not desired!).  Note I say *mostly* because there still seem to be some length=1 (e.g. 0.003mm) segments 
at the end of valid-length segments.  I do not want to remove them because this would change the board layout, though 
in a basically imperceptible way.  We could maybe have an option to clean & remove these minimal-length segments, but 
I worry that they serve to connect things slightly off grid & those things on-grid; also, removal may cause DRC 
errors. It would be good if we could avoid their creation.(?)

Removed "wxRESIZE_BORDER" and "wxSTAY_ON_TOP" properties from assorted dialog boxes, and edited caption of dialog box specified within pcbnew/dialog_drc.cpp

set svn:eol-style property to native for all ascii files to support cross platform development