Update transactionview.cpp
Update transactionview.cpp

I add a QMenu ,"Trading Show this address" , It show this address all transaction record.  This is more convenient, do not need to copy the address.

add TransactionView::showTrans()
nanocoins/mycoin,nanocoins/mycoin,nanocoins/mycoin,nanocoins/mycoin,nanocoins/mycoin