Merge pull request #172 from juvenn/feat/auto-doc

Update doc when release

Author: weakish

Makefile

@@ -4,9 +4,11 @@ test:
 
 release:
 	./release.sh $V
+	make doc
 
 doc:
-	vendor/bin/apigen generate --source src --destination docs
+	@rm -r docs
+	@php5.6 vendor/bin/apigen generate --source src --destination docs
 
 test_engine:
 	php -S ${LEANCLOUD_APP_HOST}:${LEANCLOUD_APP_PORT} test/engine/index.php