Merge pull request #2 from negedzuregal/develop

generic qr image problem + gitignore for test wallet + org.json dependency (previously merged only with master)
Merge branch 'develop' of https://github.com/cpacia/BitcoinAuthenticator

added multi-out txs
load keys from file and get wallet balance
Switched to Blockr.io API from Blockchain.info
added new dependency
Merge branch 'master' of https://github.com/cpacia/BitcoinAuthenticator into develop
Merge branch 'develop' of https://github.com/cpacia/BitcoinAuthenticator into develop