Add support for executing from a symlink.
Output diff-style output.
Add Windows installation tidbit in the Readme.
Don't write output unless there are changes.
Remove commented code. Only need one final_compare function now.
Don't accept the -r flag unless we're on a Windows system.
Collapse config file check to one regexp.

Also noticed the file write was inside the loop for each line in the file, so I moved it outside and made it write only if there are any config files changed.
Fix superfluous config file output.
Remove context config files in config_files.out.
Pruned unused variables.
Update README.md
Update README.md
Try to fix code formatting
Try to fix readme formatting
Update readme
update readme
update readme
add first sentence to usage flow
Update installation directions
Merge pull request #4 from dead10ck/master

Diff-style output. Execute from symlink. Update README.md