New format top level schematic files were not detected if they had a significant number of libraries.
The "Sheet 1" string can now be further down in the file than the original 20 line search could detect.

quiet the newer g++ compilers, which complain about certain stdio function's return values not being used

See also changelog

See also changelog

* Use single list for component library draw item and fields to simplify
  component library object.
* Add field manipulation helper methods to component library object.
* Make component library draw item edit dialog sizable.

* Created new component library editor draw item dialog box with
  wxFormBuilder.
* Removed previous DialogBlocks version of the draw item dialog box.
* Removed some additional global variables used in component library
  editor.
* Add IsFillable() method to draw item base object.

LibEdit: fixed a bug (bad format in a Printf) that crashes libedit when testing a component with duplicate pins.
Also cleaned and enhanced WinEDA_LibeditFrame::OnCheckComponent() code

* Remove global variables used by the library editor.
* Add SetWidth() method to library draw objects.

* Replace all known instances of (const wxChar*) casts to GetChars() for
  wxWidgets 2.9 compatibility.
* Cleaned up get component dialog so last part gets saved on wild card
  selections.
* Remove redundant schematic component drawing code.
* Added SCH_COMPONENT constructor to create new component from library
  component object.
* Add message panel helpers to WinEDA_DrawFrame and update old message
  panel access code.
* Using library viewer to add component to schematic now respects unit
  and body style selection.