Make .gitignore more robust/inclusive with Ruby.gitignore from Github.
see https://github.com/github/gitignore/blob/master/Ruby.gitignore
Fix module name (capitalization) in version.rb & gemspec
Update gemspec to use faraday 0.9.x
Add User-Agent header

Faraday upgrade changed the default User-Agent
whitespace
Fix tests for ruby 2.

Ruby 2 removed iconv from stdlib.
Merge pull request #7 from innercircledev/feature/ruby2

Fix tests for ruby 2.
Merge pull request #8 from innercircledev/feature/update_faraday

Update faraday to 0.9
Merge pull request #9 from innercircledev/feature/gitignore

Make .gitignore more robust/inclusive with Ruby.gitignore from Github.