* Do not divulge contracts to observers in nonconsuming exercises
Disables support for non-default ledger feature flags, as they
are meaningless since ledger server logic does not respect the flags.
Instead of large refactoring to add support for the old flag settings,
it is best to disallow the deprecated flags, and later on phase out the
flags completely.
Re-enables test_divulgence_of_token in sandbox semantic tests.
Fixes#157.
* purge LedgerFlags entirely...
...since we only support one version of them anyway, and clearing them
* updated release notes
* decode key expressions in scala correctly. fixes#177
replaced a `foldRight` with a `foldLeft`, projections were decoded
backwards.
* remove ContractKeysSimple -- superseded by ContractKeys