Implemented service to get unsigned transactions
Fixed service.js syntax error that breaks the whole app. Fixed modal view.
Renamed WalletTradeFormController to WalletAssetsFormController
Renamed walletTradeService to walletTransactionService
Initial decouple of TransactionGenerationController
Moved prepareTransaction method to the TransactionGenerationController.
Moved walletTransactionService
Added more decoupling to TransactionGenerationController
Merge pull request #568 from Nevtep/transaction-generation-frontend

Transaction generation frontend