ElasticSearch: no functionality changes, add comments and rename some vars/functions

Q: Why do we have a function called textQueryToFuzzyOrQueryStringQuery() ?  That seems ridiculous.
A: http://codebork.com/coding/2010/05/01/code-complete-high-quality-routines-part-2-naming-and-parameter-usage.html
   Also, was autoQuery() really telling me anything useful?