v3.31.2

Bug Fixes

• build: es5 compatible Object.assign
  (da3ad6ae)
• buy:
  • save external after checking trades
    (3f86fbe9)
  • only watch trades that have not received bitcoin yet
    (47877e59)
• misc: polyfill for environments without symbol
  (994b9de6)
• package: lock fetch version to 2.0.3
  (d89f8fad)
• sync: reload external metadata after a sync
  (58a222e6)

Features

• account: add can buy method to account info
  (76a7c432)
• dev: use yarn
  (d174e392)
• metadata:
  • handle metadata hd node on payload
    (e2f4e5ba)
  • expose function for deriving metadata node
    (ebd75341)

Chore

• make: ignore engine restrictions when installing with yarn
  (275d54ce)
• release: v3.31.2
  (ae453d6c)
• standard: fix code style error in gruntfile
  (2c1a4242)

Branchs merged

• Merge branch 'ios' into v3.31-release
  (6ef0679a)

Pull requests merged

• Merge pull request #381 from blockchain/check-completed
  (9a188b4f)
• Merge pull request #361 from blockchain/reload-external
  (c43155aa)
• Merge pull request #355 from blockchain/symbol-polyfill
  (d5f57cb5)