Moved the AUTHORS_FILE outside of the def section to resolve the ruby error:
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in
  `gem_original_require': ./converter.rb:152: dynamic constant assignment (SyntaxError)
                AUTHORS_FILE = "authors.xml"
                              ^
        from C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in
`require'
        from vault2git.rb:5
Add quotes around the source and dest parameters in the SETWORKINGFOLDER vault command to resolve an error changing the working directory if there's a space in the Vault path.
A failure isn't caught but instead the revisions are retrieved into the current working directory. vault2git will fail to see and commit the files in that case.
Added a QUICKSTART file to help those that might be inexperienced with Ruby (like me) and had some trouble getting an environment up and running to execute the script.
Formatting changes to the quickstart
More formatting changes.
I am not good with textile formats. Still trying...
Merge pull request #6 from ErikNoren/master

Bug fixes in converter.rb and new quickstart guide