Pin joda-time and enable Ivy globally.(v2) (#1820)
Pin joda-time and enable Ivy globally.(v2) (#1820)

This is a second attempt - I think it worked the first time but wider
instability made it appear otherwise.

Opt-out should still work, and exporting the failsafe
should disable for an entire run.
(sapling split of 6dabd7877191366cd3037d0891d5cb73333a54ca)
foursquare/fsqio,foursquare/fsqio,foursquare/fsqio,foursquare/fsqio,foursquare/fsqio