Path update for hestia.

install/ubuntu/15.04/sudo/admin

@@ -1,8 +1,10 @@
 # Created by vesta installer
 Defaults env_keep="VESTA"
+Defaults env_keep+="HESTIA"
 Defaults:admin !syslog
 Defaults:admin !requiretty
 Defaults:root !requiretty
 
 admin   ALL=(ALL)       ALL
 admin   ALL=NOPASSWD:/usr/local/vesta/bin/*
+admin   ALL=NOPASSWD:/usr/local/hestia/bin/*