Add couple more negative tests for duplicate update detection.
Expand tests to verify advertise count.
Add a couple more unit tests for RibOut keys.
Tests for qactive state when SchedulingGroup is split or merged.
Add tests for tunnel_encap.
Add tests for InetVpnRoute.
Add more tests for InetVpnTable.
Remove some unused code from BgpConfigParser.
Remove unnecessary traceing from message builder.
Refactor some dead code in PeerDequeue.
Make BgpTable::Export pure virtual.
Refactor dead code in UpdateQueue.
Merge pull request #486 from Juniper/nsheth_test_coverage

Improve test coverage and clean up dead code.