Improvements & new features

• More pedantic error handling/logging
• Handle HEAD requests (@HexaWolf <3)
• Handle OPTIONS requests (@HexaWolf <3)
• Implement CORS handling (#14, @HexaWolf <3)

Fixes

• Fix broken UUID library dependency (@HexaWolf <3)

💥 1.0.0 release

• Support MySQL and PostgreSQL in addition to SQLite
• filedrop now can be used as a standalone server, not just as library
• Broken-by-design filename logic is removed
• Byte-range requests are properly handled
• Storage directory now created if it doesn't exists
• Storage directory permissions are checked on startup to catch configuration errors

Bunch of code refinements and minor bug fixes.

filedrop is usable, yet incomplete. We mark this as release, because this is enough for super-project requirements (sutrc).