ec3b4fc Support create pid file.
3294dba changed type for core section.
2bb12f6 add *.pid to git ignore list.
2fba9b3 fix get git version tag.
bf56f59 support LevelDB key/value database.
9b5815f Upgrade redis client to v4.
f24c65a Add bunt db testing.
b744208 Support app version on api.
