* reworked payment lifecycle
* fixed retry logic (infinite loop in some cases)
* check update signature
* keep track of the list of errors and routes tried
* added support for sending bolt11 payment request in the API
* updated eclair-cli and deleted deprecated TESTING.md (closes#112)
* removed useless application.conf in eclair-node
* now handling CMD_CLOSE in shutdown/negotiating/closing states
* added no-op handlers for FundingLocked and CurrentFeeRate messages
* cleaning up stale announcements on restart
* more informative/less spam logs in Channel
* (gui) Wrapping payment events to display date of event
* Also added controls to item content in cell factory overrides. This
should prevent prevent duplicates as reported in #115
