Certain steps should always fail, even though resilience option `failOnError=false` is used.
* Docker execution typically happens in another step. We should not hide errors here but rather handle their resilience in the step which uses `dockerExecute` and `dockerExecuteOnKubernetes`.
* Wrapper steps like `pipelineExecute`, `pipelineRestartSteps` should not hide errors. If an error occured this has to be considered as **intentional** and not hidden accidentially in case resilience option is switched on.
* handlePipelineStepErrors - allow step timeouts
This adds another resilience option:
A timeout can be configured for steps in order to stop step execution, continue with the pipeline while setting build status to "UNSTABLE"
When dealing with stashes in dockerExecuteOnKubernetes the global
stash list was updated from the step. This resulted in stashes
transported between the steps, which in turn resulted in having
old stashes unstashed in a pod later down the build. E.g.: mtaBuild
followed by neoDeploy: mtaBuild created a stash, the stash was
rememebered in the default stash list and re-used later on by
neoDeploy. Since the stash was created before the mtaBuild the
deployable was missing in the step.
* alpine does not support date option --universal
Replaced by --utc as this seems to be more universal than --universal
* Fix unit tests after date parameter change
Up to now the presence of the deployable (source) was checked late
by the NeoCommandLineHelper. The code doing this is surrounded by
the try/catch which finally also puts the log written by the neo
toolset into the job log in case an exception occured.
The check for the deployable returns with the same type of
exception like a failed neo command. Hence we cannot distiguish (ok,
would be possible to parse the exception message, but that is ugly).
When the exception is triggered by the missing deployable we try to
cat the neo log into the job log. But at this point the neo log has
not been provided - neo has not been called at all in this case.
Hence `cat logs/neo/*` in turn fails.
In order to avoid such a failure we check now for the presence of the
deployable earlier before launching the neo toolset.
Since the deployable is used in any deploy mode case no further check
for the deploy mode is required prior to the check for the deployable.
