[PULL] Added balance to tooltip and send coin options in tray menu

[lulzplzkthx]

luke-jr has added the Balance tooltip to Spesmilo shortly after I suggested this idea in #bitcoin-dev

From https://github.com/bitcoin/bitcoin/pull/190:

Too features which I thought would be very useful is an easy way to view your balance without opening up the whole application, so I added the balance to the tooltip.

I also felt that adding a send coins option was nice, as there is even less reason to open up the whole bitcoin client just to send some coins.

Please note that I may not have done the translations (that is, used _()) perfectly regarding the tooltips, so please check that first.

[lulzplzkthx]

I've done a bit of looking around and see I have to update my strings for translation a bit. Will post again when that's done.

[lulzplzkthx]

Fixed. Please take a look.