Fixed GUI lock explained in #17

...transaction/ActionCommitDistributedCommittedTransfer.java

...tion/ActionPrepareDistributedCommittedTransferAnswer.java

src/main/java/fucoin/gui/FilteredLogModel.java

src/main/java/fucoin/gui/SuperVisorGuiControl.java

src/main/java/fucoin/gui/SuperVisorGuiControlImpl.java

src/main/java/fucoin/gui/SuperVisorThreadGUI.java

src/main/java/fucoin/supervisor/AmountTableModel.java

src/main/java/fucoin/supervisor/SuperVisorImpl.java