[mkgmap-dev] Commit: r2475: Fix routing problems introduced with r2448.

Version 2475 was committed by gerd on Wed, 06 Feb 2013 Fix routing problems introduced with r2448. 1) StyledConverter: try to avoid adding consecutive equal coordinates 2) LinePreparerFilter: do the same calculations as LinePreparer and reject lines that would be rejected later by LinePreparer 3) LineSplitterFilter: don't create small final part which is likely to be discarded