Fixed that mapping error you might have seen

You may have noticed a console error, something or another about mappings. We fixed that 0.1.1806 by using some really nice Kibana APIs, but this is important, pay attention: You will need to reindex your workpads. Don't worry, this is pretty easy. There are instruction below. The TL;DR is that we'll be backing up your workpads, then deleting them, then reindexing them with new IDs. Nothing will change from your perspective, but if you might want to download the JSON of your workpads before starting this process.

Jump over to Kibana's dev console and do this:

# Backup your canvas workpads in an index called 'canvas-backup-20180206'
POST _reindex
{
  "source": {
    "index": ".kibana",
    "query": {
      "match": {
        "type": "canvas-workpad"
      }
    }
  },
  "dest": {
    "index": "canvas-backup-20180206"
  }
}

# Now delete your Canvas workpads in .kibana
POST .kibana/doc/_delete_by_query
{
  "query": {
    "match": {
      "type": "canvas-workpad"
    }
  }
}

# And re-index from the backup with the new ID scheme
POST _reindex
{
  "source": {
    "index": "canvas-backup-20180206"
  },
  "dest": {
    "index": ".kibana"
  },
  "script": {
    "source": "if (ctx._source.type == 'canvas-workpad') {ctx._id = 'canvas-workpad:' + ctx._id}",
    "lang": "painless"
  }
}