Squashed 'Telerik.Sitefinity.Samples.Common/' changes from 0f1e27d..8e98e2b

8e98e2b Merge commit '3d36553dfecf0102f17289986822c7d9e684a115' into HEAD
3d36553 Upgraded to Sitefinity 7.3.5600.0
5efcd44 Update README.md

git-subtree-dir: Telerik.Sitefinity.Samples.Common
git-subtree-split: 8e98e2b7fc2ee85df65d4143ebb1d338c1aa6aa2
Merge commit '421604af58d194fe21b0ccad3b78f293d0a803b5' into review
Upgrade to Sitefinity 7.3 (7.3.5600.0)
Merge commit '86c66e3d5ad85b08fc61719a556560d61cd2202a' into HEAD