Merge remote-tracking branch 'origin/feature/6692_muon_save_periods'
Merge remote-tracking branch 'origin/feature/7726_ISIS_live_data_packets'
BugFix Update Checkbox in ScriptRepository

For some versions of Qt (it has been seen in Qt4.8), the Update column of ScriptRepository was not
displaying correctly. By, defining the correct state values, this commit
solves this issue.

re #7889
Merge branch 'feature/7889_repo_check_box' into develop