doc: specify listening addrs in the clustering example
Merge pull request #1942 from xiang90/doc

doc: specify listening addrs in the clustering example
raft: use newRaft
Merge pull request #1945 from xiang90/raft_test

raft: use newRaft
Remove verbose logging and extraneous debug. Fixes #1904
Merge pull request #1946 from barakmich/less_logging

Remove verbose logging and extraneous debug. Fixes #1904
etcdserver: fix leader stats
etcdserver: update stats when become leader
Merge pull request #1948 from xiang90/stats

etcdserver: fix leader stats
etcdctl: add environment support to certs args
docs: fix port in peer URLs
Merge pull request #1955 from coreos/doc-cleanup

docs: fix port in peer URLs
doc: update node migration guide
Merge pull request #1956 from coreos/member-migration-example

doc: update node migration guide
doc: add backword_compatibility.md
Merge pull request #1951 from jlsalvador/patch-1

etcdctl: add environment support to certs args
Merge pull request #1958 from xiang90/compatibility

doc: add backword_compatibility.md
Documentation: update to 2.0

In anticipation for a 2.0.0-rc.0 release update and move the
documentation.
version: bump to v2.0.0-rc.1
logos: add SVG and PNG logos