Create 'utils_raw_response' to return Instagram raw response in order to access headers.
Catches 502 and 504 errors.

On occasion I have experienced Faraday::Error::ParsingError errors from the
gem because they are not caught in the HTTP Exception middleware. They then
fall through to the JSON parser, but since it is returning HTML from nginx
the parser throws an error instead.

I have added the extra errors and tests that include the HTML returned to
ensure that the middleware catches the errors before the JSON parser sees
them.
Fixes incorrect url in README
Corrects inconsistent tabs/spaces in README.
Ruby highlighting for readme

Added syntax highlighting to the code samples in the readme. No changes in the actual code.
make tag_recent_media return more pagination
fix #64
Improve the subscription signature verification
Long live the alphabet!
Allow global connection_options to be configured
clarify comment.
Updated docs for 'tag_recent_media' method
Changes from @alexcp (a64c44e11c732a21962e0d70358fa4df0be808c0)
Reverted @alexcp changes
Merge branch 'master' of github.com:bauerpl/instagram-ruby-gem
Reverted @alexcp changes
Added API#config method
Update README.md

Just a typo with issue.
ignore .ruby-version file
Allow configuration of redirect uri in client
Fixed typo.