Squashed 'Telerik.Sitefinity.Samples.Common/' changes from 2eb2bb8..67ef4a3

67ef4a3 Updated references to point the packages for SF 7.1.5200.0 (Official release)
48983d1 Upgraded to SF 7.1.5200 (Official release)

git-subtree-dir: Telerik.Sitefinity.Samples.Common
git-subtree-split: 67ef4a3441bfce08f252351ab0cc02b3144a9560
Merge commit '4dc899d4215b36938aa885c3a77e98eeb77e07db' into review
Upgraded to 7.1.5200 (Official release)