Sample demo code for use with plain old Ruby (no Rails)
- Delimiter was moved into the Manager
- Log prefix was changed from 42 to 47 chars
- NoCallerFormatter and CallerFormatter now extend BaseFormatter to DRY up the code
- Updated the README to include Ruby and Rails examples (switched to lowercase Rails logger naming convention)
- Added logger() opts support for :class and :file.  For example:  Catamaran.logger( { :class => name(), :file => __FILE__ } )
- Added _write_to_log opts support for :line and :method.  For example:  LOGGER.debug( "Sample DEBUG statement", { :line => __LINE__, :method => 'run'} ) if LOGGER.debug?
- Updated version number to 0.3.0