Add test for variable expansion in meta attribute

Ref: Redmine:4885 (https://cfengine.com/dev/issues/4885)
Merge pull request #1574 from aappilattoq/master

hpux: strftime, sort
Add test for raising repaired class when existing file is templated

Ref: Redmine:4611 (https://cfengine.com/dev/issues/4611)
Compare existing mustache renditions with updated, in order to cfPS(CHANGE)

Close #4611
Redmine#4889: more tests for unresolved variables
Use full ExpandPromise for variables in BundleResolve

Does full evaluation of variables in BundleResolve, as opposed to
the previous more lightweight method.

Close #4889
Do not PolicyResolve on every merge in loading

No longer necessary due to heavier BundleResolve
Merge pull request #1563 from nickanderson/redmine/4885

Add test for variable expansion in meta attribute
sys.hardware_addresses not expanded on hpux