Issue746: checking the SGM beamline status when startup the SGM beamline
configuration
remove the usage of this pointer
rename the getter function to match the 'Acquaman Coding Converntions'
reduce the size of the spacer for the button (from 450 to 400) so that
the grid layout won't adjust due to showing the button
merge master
Merge pull request #759 from acquaman/Issue746

Issue746: checking the SGM beamline status when startup the SGM beamline configuration

Just checked this out down on the SGM. Everything seems fine.