Support the provision of utterly unstructured text

Previously, this required that the text already be broken up into
per-paragraph (or, better, per-section) units. Now this tries to do so
itself, if the text hasn't been prepared properly.

subsection-identifier.php

@@ -68,6 +68,14 @@ function parse()
  */
  $prefixes = array();
 
+ /*
+ * If the text is a string, turn it into an object.
+ */
+ if (is_string($this->text))
+ {
+ $this->text = (object) explode("\n\n", $this->text);
+ }
+
  /*
  * Deal with each subsection, one at a time.
  */