Standardize on a rebar.config dep format to reduce conflicts
Roll merge_index 1.3.2 to pick up lager 2.0.1
Merge branch '1.3' into develop

Conflicts:
	rebar.config
Fix rebar.config url to stay consistent
Bump lager dep to 2.0.2
Bump lager dep to 2.0.3
Merge branch '2.0'