for bug
Merge branch 'next' into dev

* next:
  for bug
change default home page to monitor
Fix homepage bug
Add locate host feature
Fix get machine resource from tree
simple ns withou machine resource
Improve machine accurate
Fix intersect bug
Merge branch 'location_host' of ssh://github.com:22/yujinqiu/ServiceTree into location_host
Add service metric
Fix machine metric host range bug
Trace to fix resource bug
Merge pull request #33 from yujinqiu/location_host

Location host
Fix resource query bug
Fix duplicate host bug
Merge branch 'location_host' into dev
add query tagkv timeout
Add Login and logout function
Optimize Login