* Added a dialog to select options: one or 2 files, units (mm or inch), and force INSERT option.
 * code cleaning
 * Modify corresponding  icon in menu to show a footprint, not a schematic component.

Icons for modedit and modview: remove unused or duplicate icons files and rename files. Tweak some icons.

Also commit updated icnos from Fabrizio.

Fix bug 910364: When a footprint saved in a .mod file is not on front layer and/or not with orientation 0 degree, the Module editor load it incorrectly.
note:  the Module editor save it with default orientation and layer, but the archive function does not, so some footprints can be not editable.
TODO: modify the Archive Function to use the default layer / orientation.

Minor other enhancements and code cleaning.

Minor cosmetic enhancements.
Pcbnew: more workd abput connection algorithms (work in progress)

Pcbnew: prepare work on new algos for connections calculations.

Fix bug 880132 (Justify not correct)
Note: justifications are now always relative to the text, in libedit (as before) and schematic editor:
if rotated, justification is rotated, because in Pcbnew rotation can have any value.

Eeschema, Libedit: Use 16x16 icons in comboboxes inside the pin editor dialog. This gives a better look to this dialog.

Fix confusing labels in libedit (for pins and graphic items sharing)

Gerbview: very minor fix

(With a minor change for icon_cvpcb.svg: better look on dark backgrounds)
Fix bug 668200.

Fix minor issues.
Fic compil issue in dimension.cpp with wxMSW 2.8.12 (wxMSW 2.8.12 only).

Try to use bzr rules to commit files with LF only in .cpp and .h files. Should change CRLF to LF in all bitmaps .cpp files.
In BITMAP_OPAQUE, use unsigned char instead of char for png member to remove warnings with some compilers.

Remove obsolete foldr resources/icons.
Updates svg icons in folder resources.

Fix compatibility issues with old xpm icons.
Add or update .xpm and .ico files for shortcuts and taskbars
Remove artwork folder.

* Move various locate functions into the appropriate board item object.
* Unified best zoom for all frames derived from PCB_BASE_FRAME.
* Remove track.cpp as it is no longer needed.
* Dead code removal.
* Remove scary frame window pointer member from board item objects.
* Add draw bounding box to gerber draw item for debugging purposes.

* Replace use of wxICON by new icons declaration.
* Remove unused files.
* Fix filenames inconsistencies between old and new icons.
* dialog_erc handle variable size icons in erc matrix.

* Added checks for Inkscape and pngcrush when MAINTAIN_PNG mode is enabled.
* Rebuild PNGs with transparent background.