[0.5.0]
Update microbin to 2.1.4
Full Changelog
Patch #326, change env defaults, bump to 2.1.4 by @szabodanika in #327
Change content handling to use byte buffer instead of parsing chunks directly by @ybalbert in #299
derive version from binary by @nastyagrifon in #306
Add missing public_path to some Location redirects by @farfalleflickan in #307
fix vertical layout on smartphones by @underoll in #308
Add multi-attachment support by @szabodanika in #309
improve logging with real ip by @Sofyan-SU in #311
Fix threading issue by deferring lock acquisition during file uploads by @szabodanika in #313
Support default privacy setting by @szabodanika in #314
Add MICROBIN_MAX_EXPIRY arg by @szabodanika in #321