Add needed description to Delete address button

Added a needed description to delete address/private key button that only shows an X and doesn't make clear that previous confirmation is needed to remove it from the wallet.
Fixed BTC symbol on the frontpage
Fixed overview page to display correctly
Add UUID validation to existance checking
Merge pull request #427 from maddenpj/User-Service-UUID-Validate

Add UUID validation to existance checking
Merge pull request #420 from Nevtep/sp-balances

Sp balances
Merge pull request #410 from rdymac/master

Add needed description to Delete address button
Merge pull request #3 from mastercoin-MSC/master

catchup