Exception handling while refreshing in rpc wallet (credits to QCN)
Merge pull request #183

250254c Exception handling while refreshing in rpc wallet (credits to QCN) (Sammy Libre)
Merge pull request #196

f9822c4 wallet JSON update for non-deterministic wallet data (warptangent)
4c6230d Checking and handling for deterministic vs non-deterministic wallet (warptangent)
1beedb9 Extract check for deterministic keys to wallet2::is_deterministic() (warptangent)
359ede3 indentation (warptangent)
2290eff replace lines with call to recently added print_seed() (warptangent)
version bump to 0.8.8.6
Add wallet2::verify_password method so wallet password can be verified
without changing state.
Add simple_wallet::seed_set_language method

Add simple_wallet::set_variable method to provide top-level "set"
command and support "set seed language" command.