Merge pull request #1 from steemit/appbase-update

Gemfile.lock

README.md

lib/steem/api.rb

lib/steem/base_error.rb

lib/steem/broadcast.rb

lib/steem/mixins/retriable.rb

lib/steem/rpc/base_client.rb

lib/steem/rpc/http_client.rb

lib/steem/transaction_builder.rb

lib/steem/type/amount.rb

lib/steem/version.rb

test/steem/amount_test.rb

test/steem/block_api_test.rb

test/steem/broadcast_test.rb

test/steem/database_api_test.rb

test/steem/network_broadcast_api_test.rb

test/steem/transaction_builder_test.rb