Fix bug 880132 (Justify not correct)
Note: justifications are now always relative to the text, in libedit (as before) and schematic editor:
if rotated, justification is rotated, because in Pcbnew rotation can have any value.
More about code refactoring in connect.cpp: RecalculateAllTracksNetcode() is 50 times faster with a board using 27000 tracks
Use right icon in pcbnew for load board and new board.