Eeschema: fix broken  mirroring for texts and labels in block mirror X and Y (this fixes Bug #1135505)
Pcbnew: add in module popup menu an option to edit the footprint in Modedit (like in Eeschema for components)
minor icons enhancements.

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.

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.

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