add root_fir initialization in install.php
add root_fir initialization in install.php

tangyouyi1513/openrasp,tangyouyi1513/openrasp,tangyouyi1513/openrasp,tangyouyi1513/openrasp,spacelan/openrasp,tangyouyi1513/openrasp,tangyouyi1513/openrasp,spacelan/openrasp,spacelan/openrasp,tangyouyi1513/openrasp,tangyouyi1513/openrasp,spacelan/openrasp,spacelan/openrasp,spacelan/openrasp