LuaLogging: A simple API to use logging features in Lua

LuaLogging
A simple API to use logging features in Lua. Portuguese version.

## Socket appender

This appender can be used to send log requests through a socket. Socket appender relies on LuaSocket to do its job.
Upon each log request a connection is opened, the message is sent and the connection is closed.

    function logging.socket(address, port [,logPattern])

- `address`:
  Address can be an IP address or a host name for which the log message will be sent.
- `port`:
  The port must be an integer number in the range [1..64K).
- `logPattern`:
  A pattern can be specified to control how the message is written.
  The default value is `"%date %level %message\n"`.

## Example

    require"logging.socket"

    local logger = logging.socket("localhost", 5000)

    logger:info("logging.socket test")
    logger:debug("debugging...")
    logger:error("error!")