Change in vdsm[master]: utils: allow retry of multiple functions

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Change subject: utils: allow retry of multiple functions
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Patch Set 2:

Build Failed

http://jenkins.ovirt.org/job/vdsm_master_infra_functional_tests_gerrit/29/ : There was an infra issue, please contact [e-mail]

http://jenkins.ovirt.org/job/vdsm_master_unit_tests_gerrit_el/13722/ : FAILURE

http://jenkins.ovirt.org/job/vdsm_master_unit-tests_created/14679/ : FAILURE

http://jenkins.ovirt.org/job/vdsm_master_pep8_gerrit/14511/ : SUCCESS