Require a C++11 conforming compiler
Fix ledger log warning, closes #298
Get the remote endpoint at accept time and use it
Don't check clang version using GCC macros
Fix strUnHex parsing of odd-length strings and add unit tests
Robust HashPrefix initialization, closes #300
Allow a server to keep no ledger history, closes #299
Improve validation of JSON inputs
Logging reduction in PeerImp
Avoid disk I/O when data 'moves' in a SHAMap
Disable retrieving full state trees for non-admins.
Add ledger_data command to get full ledgers in pieces
Check the node store for transaction nodes with metadata
Move MultiSocket, RippleSSLContext to common module
Refactoring beast::asio:
* New tools for completion handlers:
  - shared_handler manages any completion handler.
  - make_wrapped provides io_service execution guarantees.
* Removed obsolete classes and functions
  - AbstractHandler
  - ComposedAsyncOperation
  - SharedFunction
  - SharedHandler
  - SharedHandlerAllocator
  - SharedHandlerPtr
  - SharedHandlerType
  - wrapHandler