Add a Bitdeli badge to README
Merge pull request #5 from bitdeli-chef/master

Add a Bitdeli Badge to README
vk middleware implementation
odnoklassniki middleware implementation
Merge pull request #6 from NorDroN/master

VK and Odnoklassniki middleware implementation
 VK, Odnoklassniki: fixed nuget package references
Merge pull request #7 from KatanaContrib/master

LinkedIn: Unit Tests