Solved: eeschema crashes when create a new sheet. Added comments in gestfich.cpp to explain the default paths used by kicad to find help files and lib files

Fixed redrawing of dangling ends when connecting segments (not-anymore-dangling-ends were still displayed).

Fixed Drawing of DrawSheetStruct, so DrawSheetLabelStructs are only drawn if they are not being moved (fixes ugliness while moving PinSheets).

Added GetBoundingBox() for DrawNoConnectStruct, DrawBusEntryStruct. Removed old XOR method form DeleteStruct(). 

Refresh panel after Block move (otherwise, no-longer-dangling ends of e.g. HierLabels are still displayed)

to change the sheet.  there is no 'change' since the sheet is new, and the associated screen 
should either be loaded from the hierarchy or from a file.