Update setup.py

plugin name added
Update main_window.py
Create plot.py
Update plot.py
Update plot.py
fix is_watching_only for imported wallets
add window title for show_private_key and show_public_key
optimized deserialize and modified assert for multisig
corrected deserialize
Merge pull request #906 from Tafelpoot/tx_optimize

optimized deserialize and modified assert for multisig
separate signtxwithkey and signtxwithwallet, and simplify sign_transaction
signtxwithkey: use prompt if privkey is not passed
add account info for internal transfer description
Merge pull request #903 from Tafelpoot/windowtitles

add window title for show_private_key and show_public_key
fix #910
fix sign_transaction in btcchip too
Extend transaction serialization, format to handle unsigned inputs where only the address is known, the public key is unknown.
minor fix
use ssl.PROTOCOL_SSLv23
Merge pull request #909 from Tafelpoot/showaccount

add account info for internal transfer description