Bug 322118

As outlined here:
http://docs.kde.org/stable/en/applications/kate/advanced-editing-tools-scripting.html

When writing a script to accompany a Snippet, calls to functions in the View API don't appear to work. Specifically, no string is returned from view.selectedText().

Reproducible: Always

Steps to Reproduce:
1. With Snippets plugin installed, create and name a new Snippet.
2. Enter:

${fn`getSelectedText`}

as the text in the Snippet tab.
3. Enter:

function getSelectedText() {
return view.selectedText();
}

as the text in the Scripts tab.
4. Apply the changes.
5. Select some text and run the Snippet.
Actual Results:  
Nothing. Seems to return null.

Expected Results:  
The text selected in the main view should be returned.

This function used to be provided within Snippets by the ${selection} keyword, but this no longer functions either. It's important for writing Snippets that surround the selected text with HTML elements, for example.