Quick fixes to resume usage, Sukebei support and new mode.
Add Configuration class in Scraper to store config.
Add entry_exists() to Database for missed mode.
Add new DB names to .gitignore.
Add scraping support for Sukebei.
Change categories.json formatting and default categories.
Change Database to accept DB path and filename.
Change DB magnet links into info hashes to cut down on redundant data.
Change Nyaa to accept Sukebei and return info and DL links for both domains.
README updated to reflect the new usage.
TEMPORARILY: Add magnet_link() to Nyaa, as a lot of the torrent files are currently missing from Nyaa servers.
TEMPORARILY: Change scraper to first look for a magnet relink and use the torrent file fetch as fallback due to Nyaa server issues.