Fixes issue #62 - Check for existing config files when running hanlon_init
  Necessary checks added to hanlon_init.rb if .conf files exist
Config file overwrite confirmation key read issue fixed
   Config file creation messages replaced with more clear contextual message
Small change for linux consistent user experience
1. Confirmation options are changed from (Yes/No) to [y/N] with n being the default option
2. Message added to indicate invalid to indicate wrong option selection
Sentence capitalization done.
  do you want to replace it [y/N]? changed to
  Do you want to replace it? [y/N]
Comment on spaces after confirmation prompt addressed
Merge pull request #99 from sankarvema/Is62-fix

Thanks, everyone, for your input!

Fixes #62 (Check for existing config files when running hanlon_init)