bf2-auto-spectator v0.3.0

This release mostly contains minor improvements for users, only introducing three new controller commands. It does, however, contain significant changes/improvements to the code structure.

The three new controller commands are:

1. pause_rotation (pause the rotation between players for 5 minutes)
2. resume_rotation (resume rotating between players)
3. next_player (immediately/manually switch to the next player)

It is also the first release consisting of a single file instead of a .zip-archive.