Relicensing to MPL

The goal of this issue is to relicense this project to the Mozilla Public License 2.

We are currently using following dependencies:

• libbredis - MIT
• bcrypt - CC0
• boost - Boost Software License
• libmariadb - LPGL
• lzo - GPLv2
• cryptopp - Boost Software License

The following libraries from these are critical:

• libmariadb
• lzo

libmariadb should be fine as we are only linking dynamically. lzo is a problem we are needing a solution for.

We are using lzo to read the item_proto and mob_proto, we have following possible options for this.

• Write our own implementation of LZO1X
• Write a tool to convert these proto files to our custom file format