Set preload flag for video caching
Merge branch 'master' of https://github.com/silverwind/droppy

* 'master' of https://github.com/silverwind/droppy:
  JSHint
  Update deps
  /bin/env -> /usr/bin/env
  Release 1.0.32
  Typo
  Release 1.0.31
  Update deps
  Fix drop uploads, #178