Config provider tests updated: fix bad random seed in MockConfig. On some platforms (windows .net 4.5) when performing "new Random()" calls in short time intervals it produce same seed and leads us to identical random sequences.
Config provider tests updated: fix bad random seed in MockConfig. On some platforms (windows .net 4.5) when performing "new Random()" calls in short time intervals it produce same seed and leads us to identical random sequences.

DarkCaster/DotNetBlocks,DarkCaster/DotNetBlocks