Created a PCL for WinRT/WIn8P dev
Merge remote-tracking branch 'origin/master' into PCL
Moved some model classes to PCL
refactored composite key
Moved another class to PCL
Using PCL Model classes
Fixed unit tests. Not optimal by any means
Using mem util in PCL
Moved Ciphers to PCL core.
Moved constants to PCL
Moved Kdb4TreeMetaDataOver
Moved helper over
Split up password generation logic
Renamed interface
moved HashedBlockStream to PCL
Moved encryption base to PCL
code cleanup
Moved IKdbTree to PCL
Moved IUserKey to PCL
Moved KcpPassword