Merge pull request #2 from mkody/master

Readme; Add a *NIX compatible version
Work on duplicate finder
Merge branch 'master' of https://github.com/woodenphone/Derpibooru-dl.git
Added gitignore files for other folders
Changed file paths from being prewritten strings like "folder\\subfolder\\filename.ext" to on-the-fly generation of pathnames eg os.path.join"folder","subfolder","filename.ext"
WIP for executable
Added .gitignore entry for release folder
Update README.md