v1.6.1

1. Enhancements

Elixir

• [DynamicSupervisor] Implement child_spec/1 for DynamicSupervisor
• [Kernel] Raise better error messages on invalid map syntax

2. Bug fixes

Elixir

• [Code.Formatter] Only rearrange not in operator if explicitly opted-in
• [Code.Formatter] Ensure do blocks do not exceed line length on calls with a single argument
• [Collectable] Support bitstrings in Collectable and for-comprehensions (regression in v1.6.0)
• [GenServer] Do not override user own @opts attribute
• [Enum] Reintroduce zipping of any enumerable of enumerables in Enum.zip/1 (regression in v1.6.0)
• [Macro] Reorder kw blocks in Macro.to_string/1 to avoid warnings
• [Protocol] Fix protocol consolidation when some chunks may be missing
• [Stream] Reintroduce zipping of any enumerable of enumerables in Stream.zip/1 (regression in v1.6.0)
• [Supervisor] Do not override user own @opts attribute
• [Supervisor] Add @spec to second clause of start_link/2

ExUnit

• [ExUnit.Case] Reintroduce :case in ExUnit setup/setup_all/test context