Fixed README typos
Merge pull request #2 from jwarwick/readme_typo

Fixed README typos
Add SASL note to README
Initial work on Logger.Formatter
Format errors in Elixir terms
Add a Logger.Watcher
Add Logger.log/3 and friends
Update README
Add debug level
Add data truncation
Ensure Erlang messages are also truncated
Provide our own event manager for Logger
Provide lazily calculated messages and initial threshold
Add a discard threshold for error logger
Make Logger.Config an event handler
Fix logger truncation to not remove boundary data
Use the new format function for performance
Ensure truncation on error_logger format
Redirect log events between nodes
Alternate between sync and async modes