Rebrand - Wallet Send

[Nevtep]

Implement New Architecture and restructure controllers

• Remove WalletAssetsFormController, implement rootScope wallet.assets for the currency and addresses listing.
• Remove the TransactionGenerationController and implement the TransactionModel and ModalManager Confirmation dialog for transaction generation.
• Move WalletSendAssetsController from /js/WalletSendAssetsController.js to /js/controllers/wallet/SendController.js
• Remove Wallet, Account , and walletTransactionService. Wallet and Account are defined on the rootScope, use AddressManager instead of walletTransactionService to validate addresses.
• Implement custom confirmation_footer partial for the modals to support send by value functionality.

Implement I18n

• Follow the Architecture document directions to implement i18n.
• Use WALLETSEND as the prefix for keys on the language file.

Implement New Design and restructure views

• Move /partials/wallet_send.html to /views/wallet/send.html implementing the new design.

Referece: https://docs.google.com/a/mastercoin.org/document/d/1abVeBmUsPwcaOkg2YLqoQSlnRQ4vr85ANsR95V-oMOg/edit#heading=h.wpvrfo35b4kk

[Nevtep]

TODO: Add the modal to edit the miner fee