Man, i did like you told, but the transaction continue sending automaticaly by the system! I really dont know how to do because i cant send the bitcoins with the input and output blocked.. One transaction was confirmed but the other, the first one, stay unconfirmed and i dont know if have solution..
I get you, that is a pain. The transaction doesn't seem to be re-broadcasted by blockchain.info. If you look at the "Relayed by IP" in your newly broadcast transaction, it relayed by another node, which is strange. Luckily, the transaction is not found on other major blockexplorers, so you can "double spend" your coins from another wallet.
The procedure is to export your private key of your "1NmcWU..." address and import the private key to another wallet. Use this other wallet to create a new transaction sending the whole balance to another address. Do not repeat that dust transaction again and use a higher fee. Then you can send them all back to "1NmcWU..." if you wish.
You can follow this guide to export your private key from blockchain.info:
https://bitcointalksearch.org/topic/does-blockchaininfo-allow-you-to-export-private-key-1145127SCAN YOUR COMPUTER FOR MALWARE TO BE SAVE
DO NOT SHOW
ANYONE YOUR PRIVATE KEY
Do you use another wallet apart from blockchain.info? If not you can try this one:
https://wallet.blocktrail.comI do not have a blocktrail wallet, so I cannot help you with the interface. Follow the interface and import the private key of "1NmcWU..." into blocktrail wallet and attempt a double spend.
If anyone has a better and safer solution, please voice out.