change to use to_string/1 now that to_binary is deprecated in 0.10.2
Updatye version
Unlock ibrowse version and update dependencies
Release v0.2.3
Bump Elixir version
Update CI config
merge conflicts
Git ignore _build directory
relax Elixir version requirement
Merge pull request #18 from eitoball/relax_elixir_version_requirement

Relax Elixir version requirement
Merge remote-tracking branch 'upstream/master'
permit elixir 0.12
Merge pull request #19 from pragdave/add-012

Add 012
Updated README example of API client

A naïve copy and paste of the example API client doesn't work, because `process_url` will create a URL without a slash between `github.com` and `users/myfreeweb`. 

Secondly, the GitHub API will refuse requests that do not have a User-Agent[1]. I see that this project has a `process_headers` override, but only for response headers. Being able to do this for request headers too would be helpful. I'm not knowledgeable enough yet to make this change cleanly. :)

[1]: http://developer.github.com/v3/#user-agent-required
Merge pull request #20 from aidansteele/patch-1

Updated README example of API client
add process_request_headers hook
ignore ebin
upgrade ibrowse
call process_request_headers before converting to char lists
show headers hook in readme