* Fix a minor problem with wxFileDialog to open a file that no longer
exists in PCBNew.
* Make GerbView open file behavior the same as PCBNew.
* Remove redundant PCB file wild card definition.
* Add open file refactor task to the todo list.
* Fix some minor code formatting issues.
* PCBNew remembers last net list read during the current editing session
as well as between project editing sessions. Closes bug 576902.
* Separate PCBNew application settings from project file settings and
allocate them dynamically instead of statically to make it easier to
eliminate global variables.
* Some bugs fixed
* Starting enhancements in Libedit: menubar and commands to "plot" current component in PNG or SVF file (SVG file not fully working, must be refined)
* in variable names, change non existent word Hight to High
* Remove redundant tool in left toolbar (option toolbar)
(this option is now in layers manager)
* Show layers in horizontal combo box in same order as in layer manager.
++all:
minor code cleaning.
* Create single event handler for grid size events.
* Fix all frame windows to use new grid size event handler.
* Use offset relative to ID instead of ComboBox index to save last grid size.
* Move last grid size load/save setting into WinEDA_DrawFrame.
* Add equality and assignment operators the GRID_TYPE.
* Add current grid helper methods to BASE_SCREEN.
* Add GetPins helper to LIB_COMPONENT to replace GetNextPin where applicable.
* Add AppendMsgPanel helper to WinEDA_DrawFrame.
* Improve rounding for display of coordinates when millimeter units are selected.
* Split out application specific command IDs to prevent unnecessary rebuilding.
* Eliminate duplicate menu and tool bar command IDs.
* Split component library editor and viewer definitions to separate header files.
* More component library and document file merge code.
* A bunch of minor string readability and consistency fixes.