Fix bug when reactive token is null, user log in into another account [13908113]
Merge branch 'master' of github.com:catarse/catarse

* 'master' of github.com:catarse/catarse:
  add intercom snippet
  use recommended fb size for thumb
  add press links to footer [13861319]
  fixing update of payment data to use regex instead of json operator so we can work with PostgreSQL 9.2
  add task to fill empty payment fee on contributions table
  optimizing recommendations view with some time constraints
  using curators recommendation for home for consistency with explore and performance