Merge branch 'develop' into FearlessKiwis-MAGETWO-59785-IncorrectUrls-in-sitemap

* develop: (136 commits)
  MAGETWO-58174: When catalog is being indexed it should index in place or leverage an index alias so store can still function during a long index run
  MTO-92: [Variation] Check Shipping Amount if not base currency
  MTO-92: [Variation] Check Shipping Amount if not base currency
  MAGETWO-61829: SOAP/REST tests fail on develop branch but builds are green
  MAGETWO-62387: Travis Build Fail - 2.2.0
  MAGETWO-61902: API for price update: Base, Cost, Tier price
  MTO-96: PR2 stabilization
  MAGETWO-58174: When catalog is being indexed it should index in place or leverage an index alias so store can still function during a long index run
  MAGETWO-58174: When catalog is being indexed it should index in place or leverage an index alias so store can still function during a long index run
  MAGETWO-58174: When catalog is being indexed it should index in place or leverage an index alias so store can still fun...