Added new, separate debug option level for extra-verbose logging
Use new isDebug helper function
Fixed:  Glassdoor has jobs with - new in job title

Moved stripping "New!" to normalization of the job listing.  Added  "-
new" and "- easy apply" as cases to strip out
Use new isDebug helper function
Adding new helper class, CSimpleHTMLHelper

Unifies often-repeated, common code around getting text and values from
a SimpleHtmlObject for plugins to use.  Reduces risk of one-off errors
in a plugin.
Glassdoor:  fixes for edge cases; switched to use CSimpleHTMLHelper class