v0.6.0

• (dbutil) Added -- transaction: sqlite-fkey-off mode to upgrades, which allows safer upgrades that disable foreign keys without having to disable transactions entirely.
  • Breaking change: UpgradeTable.Register now takes a TxnMode instead of a bool as the 5th parameter.
  • Breaking change: Database.DoTxn now takes *dbutil.TxnOptions instead of *sql.TxOptions. nil is still allowed and the existing fields are still supported, but there's a new field too.
  • Breaking change: Database.Conn was renamed to Execable to avoid confusion with the new AcquireConn method (Execable just returns the current transaction or database, AcquireConn acquires a connection for exclusive use).
• (dbutil) Added finalizer for RowIter to panic if the rows aren't iterated.
• (dbutil) Changed QueryOne to return a zero value (usually nil) if the Scan method returns an error.
• (progress) Implemented io.Seeker in Reader.
• (ptr) Added new utilities for creating pointers to arbitrary values, as well as safely dereferencing pointers and making shallow clones.
• (exslices) Added functions to cast slices to different types.
• (gnuzip) Added wrappers for gzip that operate on []bytes instead of io.Reader/Writers.
• (lottie) Added wrapper for lottieconverter similar to ffmpeg.
• (variationselector) Fixed edge cases where Add and FullyQualify produced invalid output.