User Guide - query builder

Removed API stuff from the query builder page.
Added a new API reference page.
Updated the index to include the API ref in the TOC.
Started on the API reference page.
Signed-off-by:James L Parry <jim_parry@bcit.ca>
User Guide - query builder

Fleshing out the API reference
Signed-off-by:James L Parry <jim_parry@bcit.ca>
User Guide - query builder

Fleshing out the API reference
Signed-off-by:James L Parry <jim_parry@bcit.ca>
User Guide - query builder

Integrated API reference with the regular query builder page.
Added square brackets for optional parameters.
Signed-off-by:James L Parry <jim_parry@bcit.ca>
Merge pull request #3396 from jim-parry/userguide/query_builder

Userguide/query builder