Domain Project: Moved ArticleContent object to a subfolder for organization
Repository Project: Updated NuGet package config

- Updated EF from 5.0 to 6.0
- Added Castle.Windsor library reference.
Service Project: Updated NuGet package config

- Added EF 6.0 library
- Added Castle.Windsor library
NuGet Packages: Updated references

- Removed EF 5.0 reference
Web Project: Updated NuGet package references

- Updated EF from 5.0 to 6.0
- Added Castle.Windsor library reference.
Repository Project: Removed UserRoles reference.
Service Project: Updated project file for NuGet.
Web Project: Updated config file for new EF library