* fixed a bug in hierarchal shematics where a loop (e.g. same file included at different points in the 
hierarchy)  would cause infinite memory use.   
* added a edit footprint hotkey to eeschema, since it seems I'm always editing '0603' '0402' etc. on the 
common components, and it was difficult to edit this information before.

solved drc.cpp error (pcbnew crashes in track creation or edition). very minor other changes (translation)

--no commit message

- Fix minizip build.
- Fix eeschema/plugins build.
- Update TODO.

eschema, pcbnew and cvpcb did not find libraries when they were in the default library path, but in a subdirectory

listboxes.cpp problem: apply to window version only. Some other very minor enhancements and bug fixes

cvpcb:	set flag wxFRAME_FLOAT_ON_PARENT when create the footprint 3D frame and the display frame

sizers and OK, Cancel, and Apply buttons now provided