SearchMethods
===
SearchMethods' allow Umlaut to search an arbitrary data source for A-Z Journals.
Implementations must adhere to the following method signatures.
The module is included in the SearchController and has access to instance methods and
instance variables from the SearchController.

Class Methods:
--- 
These class methods are used only in the `:load_sfx_urls` rake task.
They are expected to be deprecated in future Umlaut releases.

  - `::fetch_urls?() `==> `Boolean` <br>
  Returns a Boolean indicating whether the module will return URLs
  
  - `::fetch_urls()` ==> `Array<String>` <br>
  Returns an array of strings representing URLs that are "owned" by the search
  system

Instance Methods:
---
  - `#find_by_title()` ==> `[Array<OpenURL::ContextObject>, integer]` <br>
  Returns a two element array consisting of an Array of OpenURL::ContextObject
  and the total count of records returned by the search
  
  - `#find_by_group()` ==> `[Array<OpenURL::ContextObject>, integer]` <br>
  Returns a two element array consisting of an Array of OpenURL::ContextObject
  and the total count of records returned by the search