Updated error handling logic.

Requests raise more specific errors and include additional information about the response.
Highlight code in README
Added permissions example to oauth server redirect flow
Merge branch 'master' of git://github.com/archfear/koala into archfear-master
Merge branch 'refs/heads/Sfate-master'

Conflicts:
	readme.md
Merge branch 'refs/heads/dimelo-master'
Merge branch 'refs/heads/archfear-master'
Add link to graph api explorer in readme for an easy way to obtain an access token for exploration
Parse paging urls with Addressable::URI. Issue: Non-encoded urls that Facebook passes back were failing to parse.
Using matches_url is enough. Use 'before :each' instead of 'before :all' to simplify test cleanup logic.
Remove accidental extra .should
Add test for more exotic URLs
Merge branch 'hotfix/paging_url_parsing' of git://github.com/involver/koala
Add 1.6 content, switch format to markdown
Rename changelog to changelog.md
Allow ruby-head to fail
Merge pull request #231 from jch/master

Add link to Graph API Explorer in readme
Remove some 1.1 references, reword some text
Update change log
Merge branch 'master' of github.com:arsduo/koala