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 'abe783608d027886817d90de06a455f8b947912e' into review
Upgraded to Sitefinity 7.3 official (7.3.5600.0)
Merge commit 'db66d99184c010a0da7963028f3c7f0b605faa44' into HEAD