Also support :sync mode in GenEvent, make :ack one the default
Check for terminal support from Elixir command line
Check for terminal on both stdout and stderr
Ensure elixir and iex works on MinGW
Bind value to proper name in `elixir_tokenizer`
Merge pull request #2663 from lexmag/fix-pipe_op

Bind value to proper name in `elixir_tokenizer`
Update CHANGELOG
Release v0.15.1
Add Stream.interval/1 and Stream.timer/1
Clean up interval/1 and timer/1 docs
Merge pull request #2664 from hamiltop/add_timer_and_interval_streams

Add Stream.interval/1 and Stream.timer/1