Issue #359 ASP.NET Ajax requests not displayed

ASP.NET Ajax requests have a content type of "text/plain" and so were
filtered out by Glimpse
Updated comment to match fix for Issue #359
Updated class level comment and fixed Unit Test
Tweaked comments
Update #439 - Initial commit of config generator
Fix #438 - Made class GlimpseDbDataAdapter public
Fix #440 - Added extra checks required
Update #430 - Make sections open and close more consistently