2.3.6 Bugfix release

What's Changed

• Metadata extract path by @marcmengel in #61 so setups with subdirectories in the dropbox, etc. work with metadata extractors
• add try/except around fadvise bits by @marcmengel in #62 to be less sad if files in a "local" dropbox aren't available to call fadvise when done.

Full Changelog: 2.3.5...2.3.6