v0.5.4
Fixed an issue that made the app appear sluggish in most views (you will notice that one)
Added add-to-address-book button on send summary
Displaying name of receiver in send summary if the receiving address is in the address book
Made back-button in Keys & Addresses take you to balance view instead of quitting
Properly centering of "Show to Sender" text when receiving coins
Displaying a warning if you request to receive coins to an address which is not associated with a private key