Add m_OutgoingPayLink
Small user interface fixes
Let the finrouting thread also process sending-side payment links (created with the pay command)
Moved list of paylinks from Amiko object to fin routing object
Moved functional code of doPayment function to fin routing object
Let the main thread wait until the fin routing thread finishes a transaction, during the pay command. Note that, since the fin routing thread doesn't finish any transaction yet, this means that, currently, the pay command will block forever.
Implement matching of payer-side and payee-side at the meeting point
Add a transaction flag to indicate whether we're at an endpoint of the payment