* 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.
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+eeschema
* commiting my changes to allow multiple instances of a given schematic file within
a hierarchy:
** internally, m_currentScreen has been replaced with m_currentSheet,
which is a list or 'path' of screens. The path of screens is used to
generate
a series of timestamps, which is converted to flat component reference via
a look-up
table in the schematic files.
** this means that m_currentScreen is no longer used -- use GetScreen().
** GetScreen is virtual, as some of the dialogs keep around a WinEDA_BaseScreen
pointer.
** all sub-sheets in a given schematic must have different names to generate a
meaningful netlist.