Improvements to File.ls implementation
Make h/2 and h/3 private in IEx.Helpers
Make s and t helpers private too
Fix an example in `lc` documentation
Fix a bug on Module.to_binary(Elixir), closes #920
Split IEx introspection functions into its own module
Add Macro.escape_quoted instead of Macro.escape with options
Allow 'foo . (42)' calls
Allow multiple lines 'foo . ()' calls
{}, [] and friends are purely deprecated
Initial ExUnit.DocTest implementation
Add support for exception tracking in DocTest
DocTest: add a note on using standard output
Capture the offending expression in DocTest if we can't AST it
Somewhat better line reporting on doctest failures

The line isn't precise (because we don't know the line of the @doc
or @moduledoc), but it points to the line where the definition starts
Convert Kernel to doctests
Merge pull request #930 from yrashk/doctest-kernel

Doctest kernel
Undoctest Kernel.float_to_binary/2 test as it can't be tested on R15B*
Improve deprecation of :+.() and friends
Split doctest structure from other kernel tests