refs #9135 make LET functions more or less generic
Merge branch 'master' into bugfix/9135_ISISRawAndMonitors
refs #9135 Changed Test ISIS functions to latest qtiGenie version
refs #9135 Maps sample has been modified

to work with separate monitors. It has been proven that error in reduction is caused by round-off error (eps<10^-7) and then multiplying such workspace by 10^10.
refs #9135 fixing system test which still has low case monitors ws

in it.
Merge remote-tracking branch 'origin/bugfix/9135_ISISRawAndMonitors'