KUDU-1385 Part 1: Modify documentation landing page

Rename introduction.html to index.html and get rid
of old index.html  completely.

Change-Id: Icb4b5b5ba4851d9a7974b413f8637089a157973a
Reviewed-on: http://gerrit.cloudera.org:8080/2675
Tested-by: Kudu Jenkins
Reviewed-by: Todd Lipcon <todd@apache.org>
(cherry picked from commit 738e993)

Release Apache Kudu (incubating) 0.9.0

Add a few more release notes for 0.9.0

Change-Id: Ibbd66838b51e467d4c4808fa09972d0cba717143
Reviewed-on: http://gerrit.cloudera.org:8080/3273
Tested-by: Kudu Jenkins
Reviewed-by: Misty Stanley-Jones <misty@apache.org>
(cherry picked from commit 0e9fd8c)
Reviewed-on: http://gerrit.cloudera.org:8080/3276
Reviewed-by: Jean-Daniel Cryans
Tested-by: Jean-Daniel Cryans

Release Apache Kudu (incubating) 0.8.0

Make branch-0.8.x non snapshot

Change-Id: I77b7a1b25e753279a37f333c4b2c345eb3f204fd
Reviewed-on: http://gerrit.cloudera.org:8080/2669
Tested-by: Kudu Jenkins
Reviewed-by: Jean-Daniel Cryans

Release Apache Kudu (incubating) 0.7.1

docs: Replace links to github.com/cloudera/kudu with apache/incubator…

…-kudu

Change-Id: I17d8d28e3f3c72c5bb1032b47f343004b480571b
Reviewed-on: http://gerrit.cloudera.org:8080/2403
Tested-by: Kudu Jenkins
Reviewed-by: Misty Stanley-Jones <misty@apache.org>
(cherry picked from commit e017602)
Reviewed-on: http://gerrit.cloudera.org:8080/2461
Reviewed-by: Jean-Daniel Cryans
Tested-by: Jean-Daniel Cryans

Make 0.7.1-SNAPSHOT non-shapshot

Change-Id: I2a2834318d6ba9e4054a45ee0c67ea67791c185b
Reviewed-on: http://gerrit.cloudera.org:8080/2416
Tested-by: Kudu Jenkins
Reviewed-by: Adar Dembo <adar@cloudera.com>

Apache Kudu (incubating) 0.7.0 release

KUDU-1328: crash when remote bootstrap session races with tablet dele…

…tion

An innocuous log statement introduced in commit b841512 can cause a crash if
a remote bootstrap request for a particular tablet arrives as the tserver
deletes that tablet.

I'm still working on an integration test that faithfully reproduces the
crash, but until then, here's a low-risk fix for the log statement that can
go into 0.7.

Change-Id: I6a487ba4f37383479170519866509f3f3d88dc5d
Reviewed-on: http://gerrit.cloudera.org:8080/2193
Tested-by: Kudu Jenkins
Reviewed-by: Jean-Daniel Cryans
(cherry picked from commit 7b1ea74)
Reviewed-on: http://gerrit.cloudera.org:8080/2196