Better examples of how to use Flux for querying/faceting etc..

[mwmitchell]

In order to make Flux simpler to get started with, it would be useful to have examples that show how to query Solr using Flux. Some of the Solr components that would be nice to see could be some of these:

• https://docs.lucidworks.com/display/solr/The+Extended+DisMax+Query+Parser
• https://docs.lucidworks.com/display/solr/Faceting
• https://docs.lucidworks.com/display/solr/The+Stats+Component

These examples could be inlined with the main README file or as a separate document.