* Fix behavior of path.WKSHome so that it will work correctly for wkp

* tests for WKSHome
Co-authored-by: Jerry Jackson <jerry@weave.works>

The original machines.yaml didn't seem to be valid anymore. Also updated the wks-controller log command and removed wksctl apply args where they matched defaults.

Change liche args

Update docs bits

* only push image if quay.io credentials are present

* fix command to be multi-line string

* flip backward test

* Add comment so circle will see the previous change

* only run gcp integration tests if secret key is available

* fix typo in config file

* Update rhel test to check for secret_key
Co-authored-by: Jerry Jackson <jerry@weave.works>
Co-authored-by: Mark Emeis <mark.emeis@weave.works>

Fix SELinux permissive mode detection logic

- add selinux fix right after installing docker package on centos
- prevent setenforce failure
- set selinux permissive only when it needs to be
- fix selinux permissive check

[WKP-142] Add rhel support

integration tests - preemptible, no restarts, self-destruct in 48h

add a new case statement for rhel

small changes

cleanups

apply pr review changes

add rhel integration test

enable rhel integration test

enable USE_IMAGE=1 for rhel

fix centos test incorrectly running ubuntu

Install Sealed Secrets CRD before controller

Signed-off-by: Dinos Kousidis <dinos@weave.works>

Updates sealed secret controller manifest to v0.11.0

Signed-off-by: Dinos Kousidis <dinos@weave.works>

* Added a complete description of the apply command

added wksctl apply --help + flags

* added ```console```

* moved ```console above wksctl apply --help