Correction in path creation (Train.cs) when last section is only section in path.
Correction in RequestClearSignal (Signal.cs) when train tries to enable signal already enabled by other train - both trains will reset to Node control to check on route upto signal.
git-svn-id: http://svn.uktrainsim.com/svn/openrails/trunk@1917 a9f3cfff-6c41-7446-b0ca-052bd761e6eb