Split the buy, sell, and send controllers into separate classes.
Fixed type in function braces.
Adjusted the send page so that it shows mBTC, and entire MSC/TMSC.  Need to add proper behavior for SP.
Tweaked the send confirmation so that it works with the new send page structure.
Adjust the unit conversion rates for smart properties based on their divisibility in the Send page.
Adjust mining fee and send amount placeholders and steps in the send page.
Update the displayed coin name when sending smart properties.
Merge pull request #416 from curtislacy/Rework-Send-Page

Rework send page