more DIALOG_FP_PLUGIN_OPTIONS work, make PROPERTIES a map instead of a hashtable for alphabetical iteration.

*) Use it on 3 grids total in DIALOG_FP_PLUGIN_OPTIONS and DIALOG_FP_LIB_TABLE.
*) Fix bug when pasting "(fp_lib_table" text into FP_LIB_TABLE.

template<> -> template <>
Some more reformatting according to uncrustify results.

*) Set environment variable KISYSMOD before loading FP_LIB_TABLE so that
   FP_LIB_TABLE::ROW::SetFullURI() can do substitution up front.
*) De-emphasize the lib path in some of the footprint frames but keep it
   so the footprint editor can export a current library to another.
   You can even export a GITHUB library to a pretty library for local 
   installation.
*) Start the PLUGIN options editor.
*) Enhance cursor positioning in DIALOG_FP_LIB_TABLE.

We can now remove a few calls to FP_LIB_TABLE::ExpandSubstitutions( const wxString& aString )
since its being done in above function.

DIALOG_FP_LIB_TABLE now handles table to copy cut copy paste from global to
project and reverse.  Fixed a problem with cursor position management when
switching between tables.

CTL+X, CTL+V, CTL+A, CTL+C

Remove tooltips from fp_lib_table wxGrid, were annoying and munging wxGrid's grid.
Change initial size of DIALOG_FP_LIB_TABLE.

Paste popup menu in this dialog now allows pasting a (fp_lib_table)
s-expression element holding (lib) elements.  This provides an 
opportunity for GITHUB library publishers to put the table description
into their README.md file as a (fp_lib_table) element where it can
be quickly copied to clipboard and pasted into the fp lib table dialog.
This is a paste operation, and overwrites from the initial cursor position.

Fix throwing of IO_ERROR in plugin.cpp by converting function name to wxString.GetData().
Switch to const PROPERTIES* in GITHUB PLUGIN functions.

Add const PROPERTIES* to FootprintDelete().
Add {Get,Set}Properties() to FP_LIB_TABLE::ROW.
Touch up fp table dialog.

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.

Write parser and formatter for options.  Write dialog verification used before saving
FP_LIB_TABLEs, triggered from OK button in table editor.
Switch PROPERTY's value column to std::string from wxString.
Add event handler to fp lib table dialog for upcoming options dialog.

Other platforms to follow as volunteers test support and get openssl in 
place.

* Make footprint viewer work properly with library table.
* Fix bug in Eagle plugin when enumerating footprints.
* Add missing P-CAD plugin from footprint library table editing dialog.
* Fix bug in FOOTPRINT_INFO::LoadLibraries when error occur loading footprints
  from libraries.

Fix minor bugs in cleanup dialog options and plot solder mask function (thanks to Lorenzo to locate these bugs)

* Add code to CvPcb to handle assigning component footprints from the
  footprint library table instead of the search path method.
* Add code to CvPcb to allow editing of the footprint library table.
* CvPcb footprint and component panes display fully qualified FPID names.
* Make CvPcb library pane display footprint library table nicknames instead
  of library file names.
* Add code to FP_LIB_TABLE object to test the paths in the table against the
  list of libraries loaded from the project file.
* Add code to FP_LIB_TABLE to convert assigned footprints in a NETLIST from
  legacy format to footprint library table format.
* Split out COMPONENT_NET, COMPONENT, and NETLIST objects from netlist_reader
  files and create new pcb_netlist files.
* Fix minor wxListView scroll bar sizing issues.
* Add new token and code to save and load FPID nickname in board file.
* Add new token and code to save and load FPID nickname in s-expression net
  list file.
* Add WX_STRING_REPORT object to dump strings to a wxString object.

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

Added const to GetColor() and GetType() functions in WS_DRAW_ITEM.

* Use FPID instead of wxString in MODULE object.
* Use FPID instead of wxString when loading and saving files.
* Use FPID in COMPONENT object.
* Add wxString helper functions and comparison operators to FPID.
* Add fp_lib token to pcb and netlist file formats.
* Add code to load and save FPIDs to pcb file format.
* Fix segfault when deleting invalid footprint library tables in Pcbnew
  in non footprint library table build.
* Fix bug when counting the number of mod files in
  EDA_APP::SetFootprintLibTablePath();

pcbnew: fix wxWidgets 2.8 compatibility issue (temporary fix, still have a minor cosmetic issue), and add missing file.

Pcbnew: enhancements for blind/buried vias palcement, and save blind/buried vias allowed option in .kicad_pcb file

Add pl_editor_doc.icns, from Orson. Fix Bug #1217504  (bad look of Module Properties Dialog, 3D fields).
Add Dick's workaround in plot_board_layers.cpp to try to avoid crash in solder mask calculations, due to a bug in boost::polygon, in resize function.

Pcbnew: read netlist enhancements: add option to remove single pads nets, add enforce tests to report non existing netnames in zones.
Fix also some very minor errors in comments.

Pcbnew: Fix a bug when reading a netlist which forces pcbnew to read lib files to find a footprint even if the right footprint is already loaded (which explains the long time to load netlists)
Netlist dialog: add option to report only most important messages. Useful for large boards.
class REPORTER: add features to allow a basic message filtering (flags to report all/warning/error messages)
Fix Bug #1214599 ( tools are deselected on Move command )

Others: fix very minor issues.

Pl_Editor: fix copyright in files. Enhancement when creating new items.