XEP-0335: JSON Containers
Fixes 64 bit warning
Merge branch 'master' of https://github.com/robbiehanson/XMPPFramework

# By Spencer MacDonald
# Via Spencer MacDonald
* 'master' of https://github.com/robbiehanson/XMPPFramework:
  Fixes 64 bit warning
  XEP-0335: JSON Containers