Changes

Improve README.

TAR-955 Helper to get pet node names.
This is not currently covered by tests using JenkinsPipelineUnit since
it calls in to Jenkins internal APIs which are not easy to mock.

TAR-955 Finally merge petMinder function.

Revert "[18.09] Bump Golang 1.10.8 (CVE-2019-6486)"
This reverts commit 9aec27794cc1e702bd9b9f3ac476695fc0d522a4.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Bump Golang 1.11.3 (CVE-2018-16875)
go1.11.3 (released 2018/12/14)
- crypto/x509: CPU denial of service in chain validation golang/go#29233
- cmd/go: directory traversal in "go get" via curly braces in import
paths golang/go#29231
- cmd/go: remote command execution during "go get -u" golang/go#29230
See the Go 1.11.3 milestone on the issue tracker for details: 
https://github.com/golang/go/issues?q=milestone%3AGo1.11.3
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 517a30b48d7b483e27eb3c3328356a8e83272988) 
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Bump Golang 1.11.5 (CVE-2019-6486)
See the milestone for details; 
https://github.com/golang/go/issues?q=milestone%3AGo1.11.5+label%3ACherryPickApproved
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit a86dd09775725e0ea79bcc25613879d09d11ba0c) 
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Bump golang 1.11.11 go1.11.11 (released 2019/06/11) includes a fix to
the crypto/x509 package. See the Go 1.11.11 milestone on the issue
tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.11.11
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Bump Go to 1.11.12
go1.11.12 (released 2019/07/08) includes fixes to the compiler and the
linker. See the Go 1.11.12 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.11.12
Full diff: https://github.com/golang/go/compare/go1.11.11...go1.11.12
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

Pin Golang images to debian stretch variant
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 1310e3974e8193745ce70cd74a20ab9d2151b8ac) 
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Revert "[18.09] Bump Golang 1.10.8 (CVE-2019-6486)"
This reverts commit 9aec27794cc1e702bd9b9f3ac476695fc0d522a4.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Bump Golang 1.11.3 (CVE-2018-16875)
go1.11.3 (released 2018/12/14)
- crypto/x509: CPU denial of service in chain validation golang/go#29233
- cmd/go: directory traversal in "go get" via curly braces in import
paths golang/go#29231
- cmd/go: remote command execution during "go get -u" golang/go#29230
See the Go 1.11.3 milestone on the issue tracker for details: 
https://github.com/golang/go/issues?q=milestone%3AGo1.11.3
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 517a30b48d7b483e27eb3c3328356a8e83272988) 
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Bump Golang 1.11.5 (CVE-2019-6486)
See the milestone for details; 
https://github.com/golang/go/issues?q=milestone%3AGo1.11.5+label%3ACherryPickApproved
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit a86dd09775725e0ea79bcc25613879d09d11ba0c) 
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Bump golang 1.11.11 go1.11.11 (released 2019/06/11) includes a fix to
the crypto/x509 package. See the Go 1.11.11 milestone on the issue
tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.11.11
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Bump Go to 1.11.12
go1.11.12 (released 2019/07/08) includes fixes to the compiler and the
linker. See the Go 1.11.12 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.11.12
Full diff: https://github.com/golang/go/compare/go1.11.11...go1.11.12
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

Pin Golang images to debian stretch variant
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 1310e3974e8193745ce70cd74a20ab9d2151b8ac) 
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>