Prepare release v0.4.0

[abelbraaksma]

Major release is there: version 0.4.0 ready to ship!!!

Full release information in Release v0.4.0-alpha.1 and Release v0.4.0.

Since version 0.3.0, these are the main changes (from release notes):

0.4.0

• overhaul all doc comments, add exceptions, improve IDE quick-info experience, #136, #220, #234 (in coop with @bartelink)

• new surface area functions, fixes #208:

  • TaskSeq.take, skip, #209
  • TaskSeq.truncate, drop, #209
  • TaskSeq.where, whereAsync, #217
  • TaskSeq.skipWhile, skipWhileInclusive, skipWhileAsync, skipWhileInclusiveAsync, #219
  • TaskSeq.max, min, maxBy, minBy, maxByAsync, minByAsync, #221
  • TaskSeq.insertAt, insertManyAt, removeAt, removeManyAt, updateAt, #236
  • TaskSeq.forall, forallAsync, #240
  • TaskSeq.concat (overloads: seq, array, resizearray, list), #237

• Performance: less thread hops with 'StartImmediateAsTask' instead of 'StartAsTask', fixes #135

• Performance: several inline and allocation improvements

• BINARY INCOMPATIBILITY: TaskSeq module replaced by static members on TaskSeq<_>, fixes #184

  • applies to all functions in TaskSeq.xxxx space
  • any existing code can simply be recompiled
  • replacing the library without recompiling may lead to errors

• DEPRECATIONS (warning FS0044, old names can still be used):

  • type taskSeq<_> is renamed to TaskSeq<_>, fixes #193
  • function ValueTask.ofIValueTaskSource renamed to ValueTask.ofSource, fixes #193
  • function ValueTask.FromResult is renamed to ValueTask.fromResult, fixes #193

0.4.0-alpha.1

• fixes not calling Dispose for 'use!', 'use', or finally blocks #157 (by @bartelink)
• BREAKING CHANGE: null args now raise ArgumentNullException instead of NullReferenceException, #127
• adds let! and do! support for F#'s Async<'T>, #79, #114
• adds TaskSeq.takeWhile, takeWhileAsync, takeWhileInclusive, takeWhileInclusiveAsync, #126 (by @bartelink)
• adds AsyncSeq vs TaskSeq comparison chart, #131
• removes release-notes.txt from file dependencies, but keep in the package, #138