OPT-3581 we introduced a analysis settings upgrade step that closes/reopens every index to update the analysis settings.
However it turned out this is not supported by every elasticsearch environment thus we decided to refactor this by increasing the version of every index and reindexing to a new index with the new settings.
- We need to increase the version of every index that hasn't received a version bump in the 3.1 release
- existing update data steps for indices like report indices might be worth merging together into one script applied at the new upgradeIndex step
- all indices are reindexed to a new version index during the upgrade