* All - add wxList implementation for dynamic declaration of application settings.
* EESchema: remove non-standard fonts and dialog button text colors from all UI controls.
* EESchema: update project file and application settings from static to dynamic method.
* EESchema: save and restore show hidden pins state between sessions.
* EESchema: global variable reductions.
* EESchema: use EVT_UPDATE_UI instead of SetToolbars() to set control states.
* EESchema: remove unused DialogBlocks BOM dialog project file.
* GerbView: remove non-standard fonts and dialog button text colors from all UI controls.
* GerbView: fix infinite loop when parsing RS274X aperture definitions with whitespace.
* GerbView: add file name to export to PCBNew select layer dialog.

Improved grid implementation, 3D viewer debug assertion fix, moved drawpanel.cpp to common library, and added WinEDA_Appl declaration.

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.

eeschema: code cleaning. SCH_ITEM class used for all schematic items in eeschema. Files reorganization.

Fixed Bug 1829931: calculation of zoom level in Window_Zoom(), so we show more rather than less for a box-zoom.