Prevent fatal error if not resource owner match the request

Refs #213
fixed FB incompatibility with 'error' field in response

refactored FB fix
Merge pull request #228 from stloyd/patch-1

Prevent fatal error if not resource owner match the request
Merge pull request #241 from stloyd/bugfix/fb_error_msg

Fixed FB incompatibility with 'error' field in response
Prevent fatal error if access token data is array

Fix #239, closes #240
Merge pull request #242 from stloyd/patch-2

Prevent fatal error if access token data is array
Merge remote-tracking branch 'remotes/upstream/0.2'