Merge branch 'release/3.8'
Refactored task parallelism to Parallel.invoke
Added unit test to ensure CacheStorage does not throw mmultithreading exceptions
Forking tasks instead of Parallel.Invoke for PCL
Merge pull request #15 from semihokur/develop

Refactored task parallelism to Parallel.invoke
Added unit tests trying to mimic potential deadlocks
Small improvement in DataContractSerializerFactory
(x) CTL-265 Prism Extension throws exception for non-existing NuGet catalogs
Improved Prism xml documentation
CTL-264 Reset FileServiceBase.ValidateNames default value to true
Merge branch 'develop' of https://github.com/Catel/Catel into develop
Small xml comment fix
(*) CTL-266 First code written for the ConfigurationService
Merge branch 'hotfix/3.8.1' into develop

Conflicts:
	doc/history.txt