update deprecated hash funs
update for R15 compatibility
Merge pull request #6 from basho/pevm-r16-compat

R16B01 compatibility changes.
reverse macro logic to favor forward compatability
Switch from Makefile to rebar.config.script for old_hash define
Merge pull request #7 from basho/pevm-r16-compat

Additional R16B01 compatibility changes.
Add Dialyzer support via tools.mk Makefile
Check for the existence of the local plt at runtime
Merge pull request #8 from basho/feature/tools.mk

Add Dialyzer support via tools.mk Makefile
Merge pull request #1 from basho/master

Master