When using a run parameter, you currently can only access it with

${param}

param = http://host/job/foo/14



If you just wanted the name ('foo') or the number (14) as an expansion,
you're forced to re-tokenise it somehwere else such as a script.

Add 2 extra environment vars:
param.jobName = foo
param.number  = 14

Signed-off-by: Nigel Magnay <nigel.magnay@gmail.com>