Add sqllite or mariadb ,or etc support

[duramato]

Current mongodb releases only support 64 bit while the competitors support both architectures

[stephen304]

This has been requested for a long time - unfortunately I am struggling to find time to implement bitcannon core features. #23 is the original issue I opened to track this.

I had concerns about performance, but I don't know enough about other database technologies to really know what is an option. If you'd like to give it a shot, all the database related code is in https://github.com/Stephen304/bitcannon/blob/master/api/torrentdb.go

[cron410]

+1 I hope someone with more knowledge on the subject can move this along.