release 0.3.0

0.2.0

**BREAKING**
+ files are now served under `/d/<original_filename>` after a redirect from `/f/<short-id>`

**FEATURES / ENHANCEMENTS**
+ each command-line parameter now includes a short description
+ more elaborate information about the runtime configuration is now printed on startup
+ unnecessary sub-paths following a valid request path are no longer ignored
+ the new endpoint `/state/` returns a rendered list of all current uploads

0.1.0