Better label dialog editor. Libedit: now, cannot change the component name to an existing alias name (eeschema crashes when happens)

Code seriously cleaned, obscure and duplicated code removed, and some oddities removed.
Better support of multiline texts.

Code seriously cleaned, obscure and duplicated code removed, and some oddities removed.
Better support of multiline texts.

Code seriously cleaned, obscure and duplicated code removed, and some oddities removed.
Better support of multiline texts.

Code seriously cleaned, obscure and duplicated code removed, and some oddities removed.
Better support of multiline texts.

--no commit message

* ALL: More changes for wxDC based zooming.
* 3D_VIEWER: Wrap 3d_viewer.h to prevent redefinitions.
* CVPcb: Replace wxList with boost::ptr_vector and take advantage of boost::foreach.
* CVPcb: Fix automatic association bug.
* CVPcb: Rename some variables for clarity and some minor code clean ups.
* CVPcb: Fix GTK sizing issue in library and path dialog.
* EESchema: Remove left over sizer from last commit from library and path dialog.

code cleanup, remove multiline text option in eeschema (multiline text is a work in progress) and minor enhancements

* All: remove all remaining occurrences of g_DialogFont and dialog font menu handers.
* All: remove all remaining non-standard fonts and button text colors from common dialogs.
* PCBNew: remove all non-standard fonts and button text colors from dialogs.
* PCBNew: update project library and path dialog to match changes to CVPCB version.
* EESchema: update project library and path dialog to match changes to CVPCB version.
* EESchema: save vertical/horizontal line direction setting between sessions.

* 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.

Pcbnew: Fixed: fully broken netlist import from eeschema when using time stamp (fully broken also in stable version).

* Add methods to read and write project file parameters using dynamically defined list.
* Remove all global variables defined in CVPcb code.
* Dynamically define project file settings so class member variables can be used.
* Separate reading and writing application settings from project file settings.
* Make application UI objects and dialogs respect system UI font.
* Remove non-standard widget colors from CVPcb dialogs.
* Changed CVPcb object link list implementation to use wxList.
* Changed project library and path dialog to make OK button save project file instead of confusing "Save Cfg" button.
* Eliminate some duplicate file wildcard and extension definitions.
* The usual code reformatting, commenting, and spelling fixes.

Small change in doc files: footprint_doc moved from help to share/modules
TODO: change dialog_cvpcb_config and copy code (from pcbnew) for multiple user paths in library path list in cvpcb.

Fixed: incorrect refresh of screen area after closing a popup menu (texts and polygons sometimes not redrawn)

Code clarification about 3 confusing functions to display info: DisplayInfo (displaying a message info) and class members DisplayInfo and Display_Infos doing the same thing (see changelog)