started working on video cdn files(cloud storage)
Merge branch 'master' of https://github.com/curt-labs/GoAdmin

* 'master' of https://github.com/curt-labs/GoAdmin:
  dropping the ftp root
  logging folder information
Merge branch 'master' of https://github.com/curt-labs/GoAdmin

* 'master' of https://github.com/curt-labs/GoAdmin:
  added negative index check