Corrects problem which caused crash when using location based passing paths.
Corrects error in AITrain - UpdateFollowState which caused wrong end index to be used when searching for train ahead.
Corrects error in Train - GetActions where sometimes not all required actions were properly returned.
git-svn-id: http://svn.uktrainsim.com/svn/openrails/trunk@2806 a9f3cfff-6c41-7446-b0ca-052bd761e6eb