Release 1.8.0

This release contains a database migration AND several important API endpoint changes. Please be careful when upgrading!

Changes since 1.7.4:
 - The admin page for builds now shows the download count as a column.
 - A database model to track daily downloads has been added.
 - All API endpoints have been moved to the API app and refactored. shippy 1.5.0 is required to interface with shipper 1.8.0.
 - General code cleanup
 - Updated library dependencies (humanize, sentry-sdk)

version.txt

@@ -1 +1 @@
-1.7.4
+1.8.0