add getblockhash(index)
Update dsl and client.
logs.
Add puts
Clean up puts.
more puts.
Merge branch 'master' of github.com:cgcardona/bitcoin-client

Conflicts:
	lib/bitcoin/client.rb
	lib/bitcoin/dsl.rb
Fix semantics.
Fix more semantics.
remove args for now.
Merge branch 'develop'