Replace edge representation in DFAState class with a fast hashmap (Java runtime).#2015

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mdakin wants to merge 12 commits intoantlr:masterfrom mdakin:master

+477-87

Commits on Sep 17, 2017

Replace edge representation in DFAState class with a fast hashmap.
mdakin
committed

Commits on Sep 20, 2017

Commits on Oct 7, 2017

Commits on Oct 10, 2017

Calculating modulo with & automatically handles negative keys. No need
mdakin
committed

Commits on Oct 14, 2017

A crude attempt to make writes concurrent but reads lock free.
mdakin
committed

Commits on Oct 29, 2017

Remove unused impoorts and variables, Make map not generic, a small fix to get method, some doc updates.
mdakin
committed