Added appropiate controller hirarchy and methods.
Allow inheritace of the selectedCoin on the WalletAssetsController
Added remainingBlocks to the scope.
Allow inheritance of selectedAddress on WalletAssetsFormController.
Disable address and coin fields
Set default address on the parent.
Set the balance on address change.
API to return block data.
Fixed selected coin init
Fixed missing colon.
Merge pull request #675 from faizkhan00/fix-sp-history

Fix sp history
Remaining blocks functionality
Added missing quotes.
Fixed API call.
Fixed requests call
Fixed block calculation
Fixed template.
Set the send amount.
Added back the placeholder
Fix display and value of the send amount