fix oauth2 instructions in README

The README incorrectly refers to the oauth instructions as oauth2
instructions.  This corrects that mistake and adds instructions
for oauth2.
Merge pull request #16 from danburkert/oauth2

fix oauth2 instructions in README
Add support for raw blob responses

To receive a blob in raw format from, add
    {:accept "application/vnd.github.beta.raw"}
to the data/blob options map.
Merge pull request #18 from danburkert/raw-blob

Add support for raw blob responses
Inc version.
Inc version again (last deploy was botched).
Update version in README.md
Merge pull request #19 from brandonbloom/patch-1

Update version in README.md
Add support for default options
Merge pull request #20 from brandonbloom/defaults

Add support for default options
Added support for Rate Limiting.
Added tests for Rate Limiting support.
Merge pull request #21 from jeluard/master

Support for Rate Limiting
add the three routes from the contents API
Merge pull request #22 from ngrunwald/contents

add the three routes from the contents API
added handling of useful headers information as meta on responses, and
support for conditional requests
added api-meta and updated tests
adds support for getting all repositories.

Hit /repositories end-point to query for all repositories as per api
docs http://developer.github.com/v3/repos/#list-all-repositories.
Merge pull request #24 from jakemcc/master

Adds support for querying for all repos
Inc version.