Separated methods for grabbing HTML, storing HTML and cleaning up the files generated
TO DO:
*write a real file_cleanup method (current is only placeholder)
*add support for parsing the html
Added support for multiple search terms and defaults (so program will always run)
TO FIX:
*get_results: currently only compatible with older version; does not work with current version of hits
Currently not working: Graph Support Added
BUG:
*"Could not open file: None" occurs somewhere in the BFS_crawl for-loop
Working Version: Crawler with graph support
*Bugs:
 - encounters javascript.void in list of links & crashes
 - runs extremely slowly
Created a script for removing all nodes in the current database
Used for total reset of database