Remove use of arguments and load DB from messages

Also:

• Adds GenMagic.Server.recycle and GenMagic.Server.reload which

allows to restart/reload the apprentice server with a new set of
databases,

• Fix compilation on musl based distributions (was caused by the args

code),

• Handle timeouts better in GenMagic.Server
• Force the port to close in recycling if the graceful stop timeouts