[#7] Prepare action based API

Rename ResourceType to IdentifierType (in some case it will be the same)
Rename fromId to parseId.
[#7] Move resource and shortcut traits in the simple package.
[#7] Fix test import.
Update scala version to 2.10.4
[#7] Add api call indirection (renamed methods from xxx to xxxResource).

Added simple implementation in the simple package.
[#7] Define a ResourceAction that wraps extra method calls.

Uses implicit conversion from Function1 to ResourceAction in the simple case.
[#7] Add fromId method (should be more usefull in more complex implementations)
[#7] Update demo and tutorial applications.

Just added import playr.simple
[#7] Abstract controller factory methods using the same pattern as resource action.