added listsinceblock to api calls
Changed gem name to bitcoin-client
Merge branch 'master' of https://github.com/rampa069/bitcoin-client into rampa069-master

Conflicts:
	lib/bitcoin-client.rb
	spec/lib/bitcoin-client/api_spec.rb
	spec/lib/bitcoin-client/client_spec.rb
	spec/lib/bitcoin-client/request_spec.rb
	spec/lib/bitcoin-client_spec.rb
	spec/lib/bitcoin/api_spec.rb
	spec/lib/bitcoin/client_spec.rb
	spec/lib/bitcoin/request_spec.rb
	spec/lib/bitcoin_client/api_spec.rb
	spec/lib/bitcoin_client/client_spec.rb
	spec/lib/bitcoin_client/request_spec.rb
	spec/lib/bitcoin_client_spec.rb
	spec/lib/bitcoin_spec.rb
Merge branch 'rampa069-master'