Story 1: Crawler

[peacfuljoh]

• [x] implement crawlers (videos list, video stats)
• [x] set up MySQL ops class
• [x] set up YT videos database
• [x] add subscriber_count to video_stats db
• [x] implement general-purpose mysql db utils
• [x] hook up crawlers to db
• [x] migrate to NUC
• [x] set up timed crawl, first through hotspot
• [x] setup crawler for video thumbnails
• [x] set up MongoDB to store video thumbnails and other info + automate in a process