delete Wallet WIP
implements delete wallet, in backuptab
add notification saying backup was created
fix tests
fix conflics
fix matis comments
Merge pull request #688 from maraoz/automatic/backup

add notification saying backup was created
remove .only
Merge pull request #685 from matiu/feature/deleteWallet

Feature/delete wallet
fix dependency management
refactors
ocha
working on refactor
following the single TxProposal changes
remove old methods
change 'k' for 'ntxid'
add preconditions and tests
all tests passing
optimize txp protocol
fix timeout test