Added an example test. Main effort on design and documentation.
code review fixes. merged to equal log messages into 1 message using same string
Added commnets on 'else' line which is far from the 'if' line for better understand of code
Merge remote-tracking branch 'origin/test_soft_links' into issue_237_monitor_dir_rename

Conflicts:
	lib/file_monitoring/monitor_path.rb