gui column set monospace font
cleanup dead code
add hook for transaction_dialog
update packages script
Merge remote-tracking branch 'upstream/master'

Conflicts:
	make_packages
compact serialized format for unsigned and partially signed transactions.
cleanup (dead code)
print traceback in waiting dialog
fix add_keypairs: support old wallets
serialize: do not use x_pubkeys if we have enough signatures.
help text for signrawtransaction
getmpk: return list of accounts
show number of tx signatures in gui
fix: edit label
message: cosigner wallet
Merge remote-tracking branch 'upstream/master'

Conflicts:
	lib/commands.py
fix bug with the order of signatures in tx input
detect if wallet can sign tx before showing sign button
tx dialog hooks
First cleanup branch commit

This fixes some import and whitespace issues to align closer to pep8.
I added a few comments to make further contributions easier.