Several fixes (layout, stats, transaction view).

I tested this with a daemon containing the raw transaction RPC necessary to make the search by transaction id work (issues #1 and #11).

For the moment the sources for the raw transaction RPC are in my github account (https://github.com/glv2/peercoin/tree/rpc-rawtransaction), but it will be merged into the Peerunity wallet (probably in the second release).