[analytics] Updated Chrome Platform Analytics library
[analytics] Removed offline references
[analytics] Bumped manifest version
Removed screenshots thumbnails
Merge pull request #317 from beaufortfrancois/updateAnalyticsSample

Updated Chrome Platform Analytics library
[analytics] Fixed trailing comma in manifest
Merge pull request #323 from beaufortfrancois/master

[analytics] Fixed trailing comma in manifest
Merge pull request #318 from beaufortfrancois/removeThumbnails

Removed screenshots thumbnails