Scraper/Miner: Convert to XML and add Author

Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Reddit Miner: Add Sub Reddits

Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Reddit Miner: Add Prints for clarity

Signed-off-by: Dor Shaish <dor.shaish@intel.com>