mod regret insertion
add great circle distance calc
add great circle costs
add great circle costs
Merge remote-tracking branch 'origin/master'
priv variables
refine json stuff to easily add additional json objects
Update README.md
Update README.md
Merge branch 'master' of https://github.com/jsprit/jsprit

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test json stuff
test json stuff
test json stuff
Merge branch 'master' of https://github.com/jsprit/jsprit
try to get the basic time window constraint to work
 with ignore mechanism, another basic working case with 2 nodes ignored
now it somehow magically works, even with the random hack