New methods, unit test + many algorithm errors are corrected
Manage special case where avoid key error is a good idea
improve usability of API
include lots of fun
perfection is not reach when there nothing to add, but when there is nothing to retract
reorganize things and add have() method
Move code in the right place
implement have() method
new API method for quick access to data
Delaunator manage all life of VirtualVertex instances
put the right name to things
some doc must be in the repo
rewrite API in a better way