rename input parameter in ProcessRuntimeAPI#searchUsersWhoCanExecutePendingHumanTask
fix queries retrieving user who can sart a pending human task, tests are missing currently
Merge branch 'BS-771_PM_Do_For' of github.com:bonitasoft/bonita-engine into BS-771_PM_Do_For
add test for queries retrieving user who can sart a pending human task
Merge branch 'BS-771_PM_Do_For' of github.com:bonitasoft/bonita-engine into BS-771_PM_Do_For