TODO.txt

Things to do

X Find dups
  - Add Exclude option
  - Delete all but one dup
- Find near dups (ahash, dhash, [haar?])
X Add file extension
  - normalize file extensions
- Download largest tumblr image found.
  - Deleting the old one on success.
- Config file with arg defaults (overridden by cmdline)
- Write release script (in Rust)
  - Remove dev from version.rs
  - Drop a git tag with current version
  - Update version number in version.rs (with 'dev' suffix)
  - Add date to version header in Release.md
  - Start a new section with the new version in Release.md