Detect Erlang.mk before Rebar

This allows us to avoid autopatching when the Makefile of an
Erlang.mk project contains the word "rebar".

Had to update elvis and xref_runner to master for now because
of incompatibilities. The problem went unnoticed for a while
because they were autopatched.

core/deps.mk

@@ -82,7 +82,10 @@ endif
 # While Makefile file could be GNUmakefile or makefile,
 # in practice only Makefile is needed so far.
 define dep_autopatch
-	if [ -f $(DEPS_DIR)/$(1)/Makefile ]; then \
+	if [ -f $(DEPS_DIR)/$(1)/erlang.mk ]; then \
+		$(call erlang,$(call dep_autopatch_appsrc.erl,$(1))); \
+		$(call dep_autopatch_erlang_mk,$(1)); \
+	elif [ -f $(DEPS_DIR)/$(1)/Makefile ]; then \
 		if [ 0 != `grep -c "include ../\w*\.mk" $(DEPS_DIR)/$(1)/Makefile` ]; then \
 			$(call dep_autopatch2,$(1)); \
 		elif [ 0 != `grep -ci rebar $(DEPS_DIR)/$(1)/Makefile` ]; then \
@@ -90,12 +93,7 @@ define dep_autopatch
 		elif [ -n "`find $(DEPS_DIR)/$(1)/ -type f -name \*.mk -not -name erlang.mk -exec grep -i rebar '{}' \;`" ]; then \
 			$(call dep_autopatch2,$(1)); \
 		else \
-			if [ -f $(DEPS_DIR)/$(1)/erlang.mk ]; then \
-				$(call erlang,$(call dep_autopatch_appsrc.erl,$(1))); \
-				$(call dep_autopatch_erlang_mk,$(1)); \
-			else \
-				$(call erlang,$(call dep_autopatch_app.erl,$(1))); \
-			fi \
+			$(call erlang,$(call dep_autopatch_app.erl,$(1))); \
 		fi \
 	else \
 		if [ ! -d $(DEPS_DIR)/$(1)/src/ ]; then \

index/elvis.mk

@@ -4,4 +4,4 @@ pkg_elvis_description = Erlang Style Reviewer
 pkg_elvis_homepage = https://github.com/inaka/elvis
 pkg_elvis_fetch = git
 pkg_elvis_repo = https://github.com/inaka/elvis
-pkg_elvis_commit = 0.2.4
+pkg_elvis_commit = master

index/xref_runner.mk

@@ -4,4 +4,4 @@ pkg_xref_runner_description = Erlang Xref Runner (inspired in rebar xref)
 pkg_xref_runner_homepage = https://github.com/inaka/xref_runner
 pkg_xref_runner_fetch = git
 pkg_xref_runner_repo = https://github.com/inaka/xref_runner
-pkg_xref_runner_commit = 0.2.0
+pkg_xref_runner_commit = master