* All checks flow through ripple::checkValidity, which transparently caches result flags.
* All external transaction submission code paths use checkValidity.
* SF_SIGGOOD flag no longer appears outside of HashRouter / checkValidity.
* Validity can be forced in known or trusted scenarios.
* Sanely handled specified ledger in account_tx
* Reject un-validated ledger in account_tx
* Wait to publish a ledger until it's indexed
* Add unit test for PendingSaves
This change causes each instance of Env to construct its own
isolated Application object for testing. Also included is
part of a framework to create multiple Application objects
in the same unit test and connect them together.
* Remove ripple::RippleMutex and ripple::RippleRecursiveMutex
and use std::mutex and std::recursive_mutex respectively.
* Use std::lock_guard instead of std::unique_lock when the
additional features of std::unique_lock are not needed.
