refs #10332 Allow different spelling for eFixed
refs #10332 Test failure if Ei is not defined on source workspace

Always fail in direct or indirect mode.
refs #10332 Fix min-max which now correctly changed

(the previous values were related to 60mEv incident energy (Shame!)
refs #10332 Remove unnecessary check in indirect mode

As indirect instrument would not easily change
Merge branch 'bugfix/10332_updateEi' into develop