Update CHANGELOG
Ensure path dependencies manifests point to the proper path

Closes #1888
Promote exception/1 as the best mechanism to customize exceptions

The previous mechanism of lazily customizing message/1 was very
dangerous, as you could have errors while calculating the message
and those would shop up just when the exception is printed, leading
to further breakage.

Closes #1747
Ensure aliases defined in macros do not leak
Cleaning up Exception docs (and other Kernel doc typos)
Merge pull request #1905 from jwarwick/exception_docs

Cleaning up Exception docs (and other Kernel doc typos)
Fixed docstrings in URI
Merge pull request #1906 from mprymek/uri-doc-fix

Fixed docstrings in URI
Add R16B02 and R16B01 to .travis.yml
Merge pull request #1907 from mururu/travis

Add R16B02 and R16B01 to .travis.yml
Add more hygiene examples
Ensure macro expansion does not expand on variables
Cleaning up Macro docs
Merge pull request #1912 from jwarwick/macro_docs

Cleaning up Macro docs
Use :elixir_env.ex_to_scope/1 insted of :elixir_scope.to_erl_env/1
Merge pull request #1911 from mururu/fix-pry

Use :elixir_env.ex_to_scope/1 insted of :elixir_scope.to_erl_env/1