Removed BUILD image.
Merge pull request #253 from facebook-csharp-sdk/dev

Removed BUILD image.
Updated site url.
Merge pull request #254 from facebook-csharp-sdk/dev

Updated site url.
# Added git ignore rule to exclude doc_output directory
Internals visible to Facebook.Client
Merge pull request #260 from ntotten/internals

Internals visible to Facebook.Client. Closes #256.
Version to 6.4.2
Merge branch 'master' of git://github.com/facebook-csharp-sdk/facebook-csharp-sdk