Allow the inclusion of a page title in a comment line in the input text

[jystadj]

This would function the same way as the "Change Page Title" function currently available via the gear icon.

A single line comment using the '--' tSQL syntax and beginning with a defined identification token, e.g. SPTitle:, could be optionally added to the input text. The contents of that line after the token and minus leading or trailing white space would have all characters except a restricted character set removed, something like [A-Z,a-z,0-9,-, ,.], and would then be used to re-title the window.

Example of use:
--SPTitle: This is a name for the window.