-added title header
-fixed spelling mistakes
-added a "Purge Types" section for the initial text and broke the page into two main sub sections: Processed Data Purging and Raw Data purging
-added description and example of files in ..../base/purge/
-removed text saying purge rules can be accessed in the CAVE localization perspective, because they cannot anymore
-added page breaks between selections
-cleaned up "All Purge Rules" section since now all rules live in one location only by default
-updated the "Frame-Based Purge" with current example and explanation of modTimeToWait tag
-replaced code blocks with html to bold important sections
-added now "Raw Data Purging" information and sections
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