Update fc submodule
Fix typos
Revert saving wallet to disk on every key import
Add wallet function to add appropriate inputs to cover desired outputs and network fee

Conflicts:
	libraries/dns/dns_wallet.cpp
	libraries/dns/include/bts/dns/dns_wallet.hpp
	libraries/wallet/wallet.cpp
Update fc submodule
Allow chain server to be used with derived databases
Update fc submodule
Merge branch 'master' of github.com:BitShares/bitshares_toolkit into upstream

Conflicts:
	libraries/blockchain/chain_database.cpp
	libraries/blockchain/include/bts/blockchain/chain_database.hpp
Merge branch 'master' of github.com:BitShares/bitshares_toolkit into upstream

Conflicts:
	libraries/blockchain/include/bts/blockchain/chain_database.hpp
	libraries/wallet/wallet.cpp
Fix chain server
Merge pull request #23 from vikramrajkumar/upstream

Chain server and wallet updates