Pcbnew: Add position edition in footprint dialog edition

Fix the packagesrc.sh behaviour when used on systems with locales set to something else than English.

solved some problems in hotkeys files access when spaces are used in names, and udtated paths according to the new tree used in kicad
Added wxWidgets version in about dialog

add a note to the build versions, to indicate purpose and be grep-able to allow for easier source packaging

useful for creating a config.h via an extraction script that creates a source tar bundle

subtle bug solved: no response to the first left click command after opening a dialog box (after an item edition, for instance)

pcbnew: Excellon files use only ascii codes in comments (some excellon parsers do not like I18n)

Modified recent change on svn change: "PCB edge always printed when PCB edge layer not selected" was incorrect for eeschema and gerbview
solved bug 2070228

It is resolved by adding 'Exclude Edges_Pcb layer' check box in 'Print' dialog.

bug solved: netlist calculations could crash eeschema under very rare circumstances. See also changelog

Libs update