Merge pull request #42 from natgeo/master

HOTFIX / Handle authenticacion errors.

PR was already approved at https://github.com/natgeo/activitystreams/pull/41
Merge pull request #44 from natgeo/hotfix/ar/body_parsing_errors

Fixing typo syntax errors.
Correct errors introduced in 4f5536dcfc124511987d2e4d9ffcd4005e99193d
Add tests and config option to turn off caching

This commit adds tests to verify the proper functioning of the caching
service's `_data` method, cleans up some tests, and adds a configuration
option to the application to disable caching entirely.
Normalize test urls
Merge pull request #45 from natgeo/feature/MIE-1493

Correct errors introduced in 4f5536dcfc124511987d2e4d9ffcd4005e99193d
Merge pull request #46 from natgeo/develop

Update master with develop