anchor.diff:  Indexed scripts can be deleted by:
   [source,js]
   -----------------------------------
  -curl -XDELETE localhost:9200/_scripts/mvel/calculate-score
  +curl -XDELETE localhost:9200/_scripts/mvel/indexedCalculateScore
   -----------------------------------
   
   [float]
  
positive.code: 
  [source,js]
  -----------------------------------
  curl -XPOST localhost:9200/_scripts/mvel/indexedCalculateScore -d '{
       "script": "log(_score * 2) + my_modifier"
  }'
  -----------------------------------
  
negative.code: The script can be viewed by:
  [source,js]
  -----------------------------------
  curl -XGET localhost:9200/_scripts/mvel/indexedCalculateScore
  -----------------------------------
  
  This is rendered as:
  