setJobState: set job state at package level for outgoing requests
Description
this function keeps the package from rifling off multiple requests 
while another is still pending. Package variable jobState is set with 
direct calls to this private function, or as part of any status type 
method for geojob
Usage
setJobState(state = "none")
Value
invisible return of jobState package variable
Arguments
- state
- the state (as a character) to set - jobStateto.