added link to configuration file in report, corrected bug related to alternative variable name and name existance checking in files, reorganized report generation for clarity and to slim down memory usage, moved to having images named in lists so the report templates can be stupid, changed naming scheme for thumbnail pictures to support stupid report templates

git-svn-id: https://svn.ssec.wisc.edu/repos/glance/trunk@91 8a9318a1-56ba-4d59-b755-99d26321be01