THRIFT-3214 Add Erlang option for using maps instead of dicts
Client: Erlang
Patch: Michael Oliver <mikemboliver@gmail.com>

This closes #535
diff --git a/lib/erl/Makefile.am b/lib/erl/Makefile.am
index 60c7e5a..1f65a24 100644
--- a/lib/erl/Makefile.am
+++ b/lib/erl/Makefile.am
@@ -25,6 +25,7 @@
 	for f in $(THRIFT_FILES) ; do \
 	  $(THRIFT) --gen erl -o test $$f ; \
 	done ; \
+	$(THRIFT) --gen erl:maps -o test test/Thrift3214.thrift ; \
 	touch .generated
 
 all: .generated