Moved optimization-moves.md to the doc folder and added links to the images
fixed the url for figure 7
fixed the url for figure 5 and 7
Adding 2-opt and 3-opt routines to Vehicle. These should probably be moved into twpath eventually.
fixes to 2-opt and 3-opt because original implementation was not correct.
Merge branch 'sdev' into develop
Testing new twpath funcs, fixing bugs, clean up of code.
couple of additional changes to fix a minor test problem.
adding more local path optimization routines. Some need more testing.
Merge branch 'vdev' into develop
Merge branch 'sdev' into develop