Account
* add comment, vote, transfer RC costs in account.print_info() and beempy power
* Shows number of possible comments, votes, tranfers with available RCs in account.print_info() and beempy power

RC
* add possibility to specify tx_size instead of constructing a dict for comment, transfer, vote and custom_json 

CLI
* Add -l option to beempy
* Add -s option for broadcast via steemconnect
* addtoken, listtoken and deltoken added
* Add doc - files for nodelist, steemconnect and node
Storage
* sc2_scope removed from config
* hot_sign_redirect_uri added to config

Unit tests fixed

Apply fix #42 and #41 from https://github.com/xeroc/python-bitshares