Added more specific handling for exceptions thrown by Graph
Fix coding standard introduced in #55
Fixed issed with JavaScriptLoginHelper issue #58
Updating version
Workaround Curl bug where Proxy headers are not included in header_size
Added PHP version requirement to README
Added codes to exceptions thrown by the SDK.
Create CONTRIBUTING.md

Github supports a number of special files, one of them being Contributing.md

Upon inclusion to your repo, your terms will always appear at the top of every
pull request reminding a user to review them.

In the case of all Facebook OSS work requiring an agreement to the CLA, this
would be a useful reminder to have.
For environments where the PHP Curl extension is not enabled, it falls back to use http streams to make the api calls
Add method to get user_id and other fields from a signed request when used to create a session.
Add method to get user_id and other fields from a signed request when used to create a session.
Add method to get user_id and other fields from a signed request when used to create a session.
Fixed warnings that would display when running tests
A few quick fixes.
Fixes
Changed error code for stream failure.