Turns out in the new executor on-demand code, queue maintenance happens so quickly that even when a job is submitted with delay 0,
it can still fail the test if the check happens when "new GregorianCalendar()" returns the same value as "top.timestamp".

I'm relaxing that check

Previous patch (3eea3964) broke usescases when evn. variable overwrites already existing one
like PATH = $PATH:/my/path

Consult Descriptor.newInstance() even when proccessing is in the middle
of JSON tree.
(cherry picked from commit d15c1550)

Noting that various DirScanner implementations handle this inconsistently.

the page used FilePath.getLocal(), which was removed in
19860fa0 (12/2006)

Both are shown if defined. The edit description link only applies to View.description.
Properly handle a ViewGroup other than Jenkins itself, such as a folder.