Eeschema: netlist generation: fix bad choice for the "best net name" when selecting a net name between labels connected to the same net.
Code cleanup and remove unused file.

Fix an annoying issue about not named nets:
now, these nets are named from the component references and pin names which are connected.
therefore, unless the net or the footprint references are modified, the net name is not modified between 2 netlist calculations.

Pcbnew: better test for allowed layers when creating/editing Dimensions and some other Graphic items
Drc: fix comments and messages for some drc tests.
To do: fix issues in active layer selection when creating a track and layer pair selection dialog

Add <aliases> and <alias> to generic netlist XML format, required by new bom_csv_grouped_by_value.py support.

* Fix Bug 1219239 - EESCHEMA crashes when editing a template field in libedit through the context menu

Lay basis for a more full featured usage of boost, including compiled libraries such as unit_test_framework, system, etc.  Move headers now into boost_root/include/boost/.

* Fix the last parts of Bug 1204712 by removing DateAndTime from library file and documentation file formats. They weren't being loaded anyway.

* Use a regular expression to enforce more stringent bus label testing.
* Add validator to edit label dialog to prevent space character from being
  used in labels.

dialogs which allow editing of component properties.  The button
is active when the table row cursor is on the DATASHEET field only.
When active, and your datasheet is a URI, then your default
browser will be launced to show that datasheet if it can find it.
This incentivizes use of http:// links for datasheets.

was simply a pointer to an object on the display list.  At times this object
would disappear from the display list, in the test case because of a concatonation
of two wires, and if you then tried to clone the non-existent object you'd get a 
crash.  This was not merely a bug, but a naive design choice. IMO.
Now the item to repeat is cloned, so will never also be on the display list.

*) add hotkey for setting the grid origin as 'S', in board editor, module editor.
*) re-position the function interface for cursor movement from BASE_SCREEN into
   class EDA_DRAW_FRAME.  This is a prelude to getting rid of BASE_SCREEN or
   splitting it up.

* Force search when wrap past end of list option changes state.
* Fix SCH_FIELD::Matches() for bug in user defined fields which have an ID
  of -1.
* Minor improvements to the find data names to improve source code readability.

Eeschema: fix a *very subtle* bug noticeable only in complex hierachies, for multiple parts per package:
sometimes, the modified flag was set for these components just when switching from a sheet to an other sheet.
Pcbnew: fix Bug #1197414 (dragged track segments does not show clearance area)

Replace in EDA_TEXT::Draw the parameter EDA_DRAW_PANEL* aPanel  by EDA_RECT* aClipBox, which is the actual parameter used by Draw.
This change make more easy to  use this function when a EDA_DRAW_PANEL canvas is not used to draw texts.
Remove dead code in worksheet.cpp.

Pcbnew: netlist dialog: add silent mode option, and tool tip to the 2 options (dry run and silent mode)
dialog_display_info_HTML_base: derived now from dialog_shim.

Rename invoke_a_dialog.h.  Code an alternate implementation for std::string BOARD_ITEM::FormatInternalUnits( int aValue ), for verification.

   and various DIALOG classes called from top frames.  See comments in
   {eeschema,pcbnew}/invoke_a_dialog.h.
*) Move some dialog classes into *.cpp files from *.h files.
*) void SCH_EDIT_FRAME::OnErc( wxCommandEvent& event ) was opening the modeless
   ERC dialog more than once if icon was clicked more than once.
*) Remove BOM stuff.

page layout: if the environment variable KICAD_WKSFILE points a S expr page layout descr, this descr is used instead of internal descr. Mainly for testing purposes.
Eeschema, dialog edit component: minor enhancement (the last selected notebook page is remembered during a session)

Eeschema, dialog netlist: fix a bug when removing a plugin panel, when is is not the last.
dialog netlist:Add a predefined command string for python scripts, when creating a new netlist plugin entry.

fix libeditframe.cpp, which in release build would not show multipart text in listbox.  dialog uses DIALOG_SHIM.

*) Enhancements to make_lexer().
*) Support multi-threaded build.
*) Switch to "bzr patch" from patch.exe for Windows users.

because under Linux and wxWidgets 2.9, wxStaticBoxSizer are very ugly (text not readable in this dialog)
(Does not happen with wxWidgets 2.8)
Eeschema hotkeys: remove duplicate keys in key editor.