kcptun-libev v2.1

Major changes since v2.0:

1. There are serveral breaking changes in config file:

• udp_connect: Renamed as kcp_connect.
• udp_bind: Renamed as kcp_bind.
• loglevel: Reversed, higher numbers now mean higher verbosity.

2. Added a simple obfuscator.
3. Added a HTTP monitoring tool. Now we can get rid of status messages in the log.
4. Reduce memory usage.

Check README for more information.

If you downloaded a *-static build, you don't have to install runtime dependencies.