* Change EDA_ITEM set flag function to set flag bits using logical or
instead of assignment.
* Add clear flag function to EDA_ITEM to clear flag bit using inverted
logical and.
* Factor change schematic text type code out of switch statement into
a single function call.
* Schematic text orientation function renaming improvements.
* Lots of small coding policy changes to updated files.
* Old control state handling code completely removed in all applications.
* Factor common control state handlers into EDA_DRAW_FRAME.
* Replaced EDA_ITEM test for newness with IsNew() method.
* Factor vertical right toolbar command handlers out of giant edit command
switch statement in EESchema and PCBNew.
* Move schematic wire and bus break code into schematic screen object.
* Move schematic test for dangling ends into schematic screen object.
* Remove left over debugging output in schematic screen object.
* Remove unused file eeschema/cleanup.cpp.
* Fix bug in schematic line object hit test algorithm.
* Fix a string concatenation compile error added in r2752.
* Rename class WinEDA_BasicFrame to EDA_BASE_FRAME.
* Rename class WinEDA_DrawFrame to EDA_DRAW_FRAME.
* Rename class WinEDA_DrawPanel to EDA_DRAW_PANEL.
Wayne Stambaugh
jean-pierre charras
Dick Hollenbeck