release: Kata Containers 1.7.0-alpha1

- service: Fix user initiated shutdown
- agent: Add support for local storage
- vendor: Update libcontainer vendoring
- agent: send SIGKILL instead of SIGTERM to container init process
- make: Add build option STATIC=1 to statically link
- Update code to handle lint issues after golangci-lint update to v1.6.0

cb32d28 test: Fix mockContainer
3e12793 agent: Fix container creation
6e558f7 vendor: Update libcontainer vendoring
7fbd860 agent: send SIGKILL instead of SIGTERM to container init process
8847998 agent: Add support for local storage
8b34aaf make: Add build option STATIC=1 to statically link
01b1cb2 travis: Use xenial
d815c97 lint: Update code to handle lint issues
828b417 ci: Update travis go version from 1.10 to 1.11
85e0942 docs: Explain shutdown behaviour with tracing
99d6118 docs: Define "VM" in tracing doc
353ec2d service: Fix user initiated shutdown with static tracing

Signed-off-by: katacontainers bot <katacontainersbot@katacontainers.io>

VERSION

@@ -1 +1 @@
-1.7.0-alpha0
+1.7.0-alpha1