catch bad message keys
Merge pull request #254 from matiu/bug/messagekey

catch bad message keys
fix mailbox plugin message
Merge pull request #255 from cmgustavo/bug/mailbox

fix mailbox plugin message
Fix confirmation info for multiple spent attempts

Use the correct property when going over multiple spent attempts.
Merge pull request #257 from laudney/master

Fix confirmation info for multiple spent attempts
Merge pull request #253 from isocolsky/paginate_txs

WIP Paginate txs
various fixes + readme.md