Pcbnew: Added move and rotate hot keys in board editor. hotkeys.cpp code cleaned. Fixed a bug that can crashes Pcbnew when switching track posture.

Updated boost::polygon from http://svn.boost.org/svn/boost/trunk/boost/polygon (boost 1.44) Seems fix some issues.

minor code cleaning. fixed minor warnings in debug mode.

Added boost::polygon (experimental)
Added experimental zone fill calculations with boost::polygon
Added patches from Yury Khalyavin

Fixed compil warning under wxWidgets 2.9.1.
File beautification
Statring using wxTextEntryDialog instead of Get_Message (because Get_Message does not handle properly cancel option)

/pcbnew/class_netclass.cpp:324
eeschema/class_sch_component.cpp:933

Fixed a minor issue when creating a netlist. for nets having global labels, global label names were ignored when naming this net.

Pcbnew:   Added grid origin patch from Lorenzo Marcantonio.   Converted set grid dialog from DialogBlocks to wxFormBuilder,  and added in this dialog the grid origin parameters settings.

inches and mm, the industry is crazy enough to force us with mixed
design. For example I routinely use imperial units for track size and
clearance, but drilling is strictly a metric issue...

So I added a little parser to recognize a suffix specification in the
unit text boxes... so you can put in things like:
1in (1 inch)
1" (idem)
25th (25 thou)
25mi (25 mils, the same)
6mm (6 mm, obviously)

The rules are: spaces between the number and the unit are accepted, only
the first two letters are significant.

As a bonus, it also recognize the period (.) as a decimal point
substituting it with the correct locale character (there was a wishlist
for it, IIRC). Most useful for number pad fans :D 

fixed bug 603481. Better bitmap2component look. fixed some locate problems for footprints using polygons (mainly created by bitmap2component)

Cleaning code: moved some help strings used both in toolbars and menus in a single file help_common_strings.h,
in order to avoid slightly different help strings for the same command, and avoid some not needed  translations.

factor some pioneering code into a the stable building block class DSNLEXER, generalize expected valued for name and value within the template field parser.

fixed bugs 593546  ( 'Update module' in module editor becomes sometimes unavailable after undo ) and 593547  ('no' confirmation in module editor overlaps modules)

Added an experimental tool to create logos from .bmp bitmaps. Added Potrace library to convert bitmaps to polygons

* Fix a minor problem with wxFileDialog to open a file that no longer
  exists in PCBNew.
* Make GerbView open file behavior the same as PCBNew.
* Remove redundant PCB file wild card definition.
* Add open file refactor task to the todo list.
* Fix some minor code formatting issues.

Set minimum cmake version to 2.6.4. Added footprint name edition in the module editor dialog properties.